What have I learned from completing 50 web projects with JavaScript in 50 days?

Xi Shui 2021-08-09 17:05:24
learned completing web projects javascript


1.Expanding Cards

The effect is shown in the figure :

1.gif

  1. CSS: In elastic box layout flex attribute : Let all the child elements of the elastic box model object have the same length , And ignore their internal content .
  2. JavaScript: utilize [].filter.call() Method can quickly realize simple tab switching . Such as the above example source code :
const panelItems = document.querySelectorAll(".container > .panel");
panelItems.forEach(item => {
item.addEventListener('click',() => {
[].filter.call(item.parentElement.children,el => el !== item).forEach(el => el.classList.remove('active'));
item.classList.add('active')
});
});

2.Progress Steps

The effect is shown in the figure :

2.gif

  1. CSS:CSS The use of variables and the use of pseudo elements in the vertical and horizontal center of the elastic box .
  2. JavaScript: Calculate the width of the progress bar , Operation of class name . As shown in the above example, part of the source code is as follows :
function handleClass(el){
let methods = {
addClass,
removeClass
};
function addClass(c){
el.classList.add(c);
return methods;
};
function removeClass(c){
el.classList.remove(c);
return methods;
}
return methods
}

3.Rotating Navigation Animation

The effect is shown in the figure :

3.gif

  1. CSS:CSS Elastic box layout plus rotate Animation .
  2. JavaScript: Add and remove class names . As shown in the above example, part of the source code is as follows :
const addClass = (el,className) => el.classList.add(className);
const removeClass = (el,className) => el.classList.remove(className);

4.hidden-search-widget

The effect is shown in the figure :

4.gif

  1. CSS:CSS Transition animations + Change of width + input Of placeholder style .
  2. JavaScript: Add and remove class names . As shown in the above example, part of the source code is as follows :
.search.active > .input {
width: 240px;
}
.search.active > .search-btn {
transform: translateX(238px);
}
.search > .search-btn,.search > .input {
border: none;
width: 45px;
height: 45px;
outline: none;
transition: all .3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
border-radius: 8px;
}
searchBtn.addEventListener('click',() => {
searchContainer.classList.toggle('active');
searchInput.focus();
})

5.Blurry Loading

The effect is shown in the figure :

5.gif

  1. CSS:CSS filter Property usage ;.
  2. JavaScript: Timer plus dynamic setting style . As shown in the above example, part of the source code is as follows :
let load = 0;
let timer = null;
let blurryLoadingHandler = function(){
load++;
if(load > 99){
clearTimeout(timer)
}else{
timer = setTimeout(blurryLoadingHandler,20);
}
text.textContent = ` Page loading ${ load }%`;
text.style.opacity = scale(load,0,100,1,0);
bg.style.filter = `blur(${scale(load,0,100,20,0)}px)`;
}
blurryLoadingHandler();

Here is a very important tool function ( Several subsequent examples use this tool function ), As shown below :

const scale = (n,inMin,inMax,outerMin,outerMax) => (n - inMin) * (outerMax - outerMin) / (inMax - inMin) + outerMin;

The purpose of this tool function is to map one range of numbers to another range of numbers . For example , take 1 ~ 100 The range of numbers mapped to 0 ~ 1 Between .
details .

6.Scroll Animation

The effect is shown in the figure :

6.gif

  1. CSS:CSS Displacement animation .
  2. JavaScript: Creating elements dynamically + Element scrolling event listener + Judgment of the visible area of the view + Anti shake function . As shown in the above example, part of the source code is as follows :
function debounce(fn,time = 100){
let timer = null;
return function(){
if(timer)clearTimeout(timer);
timer = setTimeout(fn,time);
}
}
let triggerBottom = window.innerHeight / 5 * 4;
boxElements.forEach((box,index) => {
const top = box.getBoundingClientRect().top;
if(top <= triggerBottom){
box.classList.add('show');
}else{
box.classList.remove('show');
}
})

7. Split Landing Page

The effect is shown in the figure :

7.gif

  1. CSS:CSS Transition effects + The elastic box is vertically and horizontally centered + CSS location + Change of width .
  2. JavaScript: Mouse hover Events + Operation of class name . As shown in the above example, part of the source code is as follows :
HTMLElement.prototype.addClass = function(className) {
this.classList.add(className);
};
HTMLElement.prototype.removeClass = function(className){
this.classList.remove(className);
}
const on = (el,type,handler,useCapture = false) => {
if(el && type && handler) {
el.addEventListener(type,handler,useCapture);
}
}
on(leftSplit,'mouseenter',() => container.addClass('hover-left'));
on(leftSplit,'mouseleave',() => container.removeClass('hover-left'));
on(rightSplit,'mouseenter',() => container.addClass('hover-right'));
on(rightSplit,'mouseleave',() => container.removeClass('hover-right'));

From this example , I know, too mouseenter、mouseleave and mouseover、mouseout The difference between , Summarized below :

  1. enter Trigger only 1 Time , It will not continue to trigger until the mouse leaves the target element , Empathy leave That's how I understand . and over And out Is constantly triggering .
  2. enter Enter child element , adopt e.target It's also indistinguishable from moving in / Remove the child element or the parent element , and over And out You can distinguish .

8.Form Wave

The effect is shown in the figure :

8.gif

  1. CSS:CSS The gradient + The elastic box is vertically and horizontally centered + CSS Transition animations + CSS Displacement transformation + Focus on the use of pseudo class selectors and sibling element selectors .
  2. JavaScript: Replace string with label + Creating elements dynamically . As shown in the above example, part of the source code is as follows :
const createLetter = v => v.split("").map((letter,idx) => `<span style="transition-delay:${ idx * 50 }ms">${ letter }</span>`).join("");

9.Sound Board

The effect is shown in the figure :

9.gif

  1. CSS:CSS The gradient + The elastic box is vertically and horizontally centered + Basic styles .
  2. JavaScript: Creating elements dynamically + Play the audio (audio label ). As shown in the above example, part of the source code is as follows :
sounds.forEach(sound => {
const btn = create('button');
btn.textContent = sound;
btn.type = "button";
const audio = create('audio');
audio.src = "./audio/" + sound + '.mp3';
audio.id = sound;
btn.addEventListener('click',() => {
stopSounds();
$('#' + sound).play();
});
buttonContainer.appendChild(btn);
buttonContainer.insertAdjacentElement('beforebegin',audio);
});

10. Dad Jokes

The effect is shown in the figure :

10.gif

  1. CSS:CSS The gradient + The elastic box is vertically and horizontally centered + Basic styles .
  2. JavaScript: Event monitoring + fetch API Request interface . As shown in the above example, part of the source code is as follows :
const api = 'https://icanhazdadjoke.com';
const on = (el,type,handler,useCapture = false) => {
if(el && type && handler){
el.addEventListener(type,handler,useCapture);
}
}
on(getJokeBtn,'click',request);
request();
async function request(){
const res = await fetch(api,headerConfig);
const data = await res.json();
content.innerHTML = data.joke;
}

11. Event Keycodes

The effect is shown in the figure :

11.gif

  1. CSS:CSS The gradient + The elastic box is vertically and horizontally centered + Basic styles .
  2. JavaScript: Keyboard event monitoring + Properties of the event object . As shown in the above example, part of the source code is as follows :
const container = document.querySelector('#container');
window.addEventListener("keydown",event => {
createKeyCodeTemplate(event);
});
function createKeyCodeTemplate(e){
const { key,keyCode,code } = e;
let template = "";
[
{
title:"event.key",
content:key === " " ? "Space" : key
},
{
title:"event.keyCode",
content:keyCode
},
{
title:"event.code",
content:code
}
].forEach(value => {
template += `<div class="key"><small>${ value.title }</small>${ value.content }</div>`;
});
container.innerHTML = template;
}

12. Faq Collapse

The effect is shown in the figure :

12.gif

  1. CSS:font-awesome Use of font library + Pseudo element selector + location + CSS The gradient + Basic styles .
  2. JavaScript: Creating elements dynamically + Class name switching + Event agent . As shown in the above example, part of the source code is as follows :
const faqs = document.querySelectorAll('.faq-container > .faq');
container.addEventListener('click',e => {
if(e.target.className.indexOf('faq-icon') > -1){
faqs[[].indexOf.call(faqs,e.target.parentElement)].classList.toggle('active');
}
});

13. Random Choice Picker

The effect is shown in the figure :

13.gif

  1. CSS: Basic styles .
  2. JavaScript: Creating elements dynamically + Class name switching + Usage of delay timer + random number + Keyboard event monitoring . As shown in the above example, part of the source code is as follows :
function createTags(value,splitSymbol){
if(!value || !value.length)return;
const words = value.split(splitSymbol).map(v => v.trim()).filter(v => v);
tags.innerHTML = '';
words.forEach(word => {
const tag = document.createElement('span');
tag.classList.add('tag');
tag.innerText = word;
tags.appendChild(tag);
})
}
function randomTag(){
const time = 50;
let timer = null;
let randomHighLight = () => {
const randomTagElement = pickerRandomTag();
highLightTag(randomTagElement);
timer = setTimeout(randomHighLight,100);
setTimeout(() => {
unHighLightTag(randomTagElement);
},100);
}
randomHighLight();
setTimeout(() => {
clearTimeout(timer);
setTimeout(() => {
const randomTagElement = pickerRandomTag();
highLightTag(randomTagElement);
},100);
},time * 100);
}
function pickerRandomTag(){
const tagElements = document.querySelectorAll('#tags .tag');
return tagElements[Math.floor(Math.random() * tagElements.length)];
}

14. Animated Navigation

The effect is shown in the figure :

14.gif

  1. CSS: Basic styles + location + Displacement transformation and angular rotation .
  2. JavaScript: Class name switching . As shown in the above example, part of the source code is as follows :
toggle.addEventListener('click',() => nav.classList.toggle('active'));

15. Incrementing Counter

The effect is shown in the figure :

15.gif

  1. CSS: Basic styles + CSS The gradient + font-awesome Use of font library .
  2. JavaScript: Creating elements dynamically + The timer implements incremental addition . As shown in the above example, part of the source code is as follows :
function updateCounterHandler() {
const counters_elements = document.querySelectorAll('.counter');
counters_elements.forEach(element => {
element.textContent = '0';
const updateCounter = () => {
const value = +element.getAttribute('data-count');
const textContent = +element.textContent;
const increment = value / 100;
if (textContent < value) {
element.textContent = `${Math.ceil(increment + textContent)}`;
setTimeout(updateCounter, 10);
} else {
element.textContent = value;
}
}
updateCounter();
});
}

16. Drink Water

The effect is shown in the figure :

16.gif

  1. CSS: Basic styles + CSS The gradient + CSS Transition effects .
  2. JavaScript: Regular expressions + loop + Style and content settings . As shown in the above example, part of the source code is as follows :
if (actives.length === l) {
setHeightVisible('0', 'hidden', '350px', 'visible');
setTextContent("100%", "0L");
} else if (actives.length === 0) {
setHeightVisible('350px', 'visible', '0', 'hidden');
setTextContent("12.5%", "2L");
} else {
const h1 = unitHei * (l - actives.length) + 'px';
const h2 = unitHei * actives.length + 'px';
setHeightVisible(h1, 'visible', h2, 'visible');
const t1 = (unitHei * actives.length / 350) * 100 + "%";
const t2 = (cups[i].textContent.replace(/ml/, "").replace(/\s+/, "") - 0) * (l - actives.length) / 1000 + 'L';
setTextContent(t1, t2);
}

17. movie-app

The effect is shown in the figure :

17.gif

  1. CSS: Basic styles + CSS The gradient + CSS Transition effects + Remove the floating .
  2. JavaScript: Interface request + Keyboard event monitoring . As shown in the above example, part of the source code is as follows :
search.addEventListener('keydown',e => {
if(e.keyCode === 13){
let value = e.target.value.replace(/\s+/,"");
if(value){
getMovies(SEARCH_API + value);
setTimeout(() => {
e.target.value = "";
},1000);
}else{
window.location.reload(true);
}
}
})
PS: This example effect is due to limited interface access , Need to climb over the wall to access .

18. background-slider

The effect is shown in the figure :

18.gif

  1. CSS: Basic styles + CSS The gradient + shadows + location + Pseudo element selector .
  2. JavaScript: Background setting and class name operation . As shown in the above example, part of the source code is as follows :
let currentActive = 0;
function setBackgroundImage(){
const url = slideItems[currentActive].style.backgroundImage;
background.style.backgroundImage = url;
}
function setSlideItem(){
const currentSlide = slideItems[currentActive];
const siblings = [].filter.call(slideItems,slide => slide !== currentSlide);
currentSlide.classList.add('active');
siblings.forEach(slide => slide.classList.remove('active'));
}

19. theme-clock

The effect is shown in the figure :

19.gif

  1. CSS: Basic styles + CSS Variable + shadows + location .
  2. JavaScript: Switch between Chinese and English and theme mode , And the processing of date objects . As shown in the above example, part of the source code is as follows :
function setCurrentDate(){
const date = new Date();
const month = date.getMonth();
const day = date.getDay();
const time = date.getDate();
const hour = date.getHours();
const hourForClock = hour % 12;
const minute = date.getMinutes();
const second = date.getSeconds();
const amPm = hour >= 12 ? langText[currentLang]['time-after-text'] : langText[currentLang]['time-before-text'];
const w = currentLang === 'zh' ? dayZHs : days;
const m = currentLang === 'zh' ? monthZHs : months;
const values = [
`translate(-50%,-100%) rotate(${ scale(hourForClock,0,11,0,360) }deg)`,
`translate(-50%,-100%) rotate(${ scale(minute,0,59,0,360) }deg)`,
`translate(-50%,-100%) rotate(${ scale(second,0,59,0,360) }deg)`
];
[hourEl,minuteEl,secondEl].forEach((item,index) => setTransForm(item,values[index]));
timeEl.innerHTML = `${ hour }:${ minute >= 10 ? minute : '0' + minute }&nbsp;${ amPm }`;
dateEl.innerHTML = `${w[day]},${ m[month]}<span class="circle">${ time }</span>${ langText[currentLang]['date-day-text'] }`;
timer = setTimeout(setCurrentDate,1000);
}
PS: This example also uses the same example 5 The same tool function scale function

20. button-ripple-effect

The effect is shown in the figure :

20.gif

  1. CSS: Basic styles + CSS The gradient + CSS Animation .
  2. JavaScript: Coordinate calculation + The offset + Timer . As shown in the above example, part of the source code is as follows :
const x = e.clientX;
const y = e.clientY;
const left = this.offsetLeft;
const top = this.offsetTop;
const circleX = x - left;
const circleY = y - top;
const span = document.createElement('span');
span.classList.add('circle');
span.style.left = circleX + 'px';
span.style.top = circleY + 'px';
this.appendChild(span);
setTimeout(() => span.remove(),1000);

21. drawing-app

The effect is shown in the figure :

21.gif

  1. CSS: Basic styles .
  2. JavaScript:canvas API + mouse Events and calculations x And y coordinate + ewColorPicker Usage of . As shown in the above example, part of the source code is as follows :
function mouseDownHandler(e){
isPressed = true;
x = e.offsetX;
y = e.offsetY;
}
function throttle(fn,wait = 100){
let done = false;
return (...args) => {
if(!done){
fn.call(this,args);
done = true;
}
setTimeout(() => {
done = false;
},wait);
}
}

22. drag-n-drop

The effect is shown in the figure :

22.gif

  1. CSS: Basic styles + CSS The gradient + CSS Elastic box layout .
  2. JavaScript:drag event API + Randomly generated image . As shown in the above example, part of the source code is as follows :
function onDragStart(){
this.classList.add('drag-move');
setTimeout(() => this.className = "invisible",200);
}
function onDragEnd(){
this.classList.add("drag-fill");
}
function onDragOver(e){
e.preventDefault();
}
function onDragEnter(e){
e.preventDefault();
this.classList.add('drag-active');
}
function onDragLeave(){
this.className = "drag-item";
}
function onDrop(){
this.className = "drag-item";
this.appendChild(dragFill);
}

23. content-placholder

The effect is shown in the figure :

23.gif

  1. CSS: Basic styles + CSS The gradient + CSS Card style .
  2. JavaScript: Skeleton screen loading effect . As shown in the above example, part of the source code is as follows :
animated_bgs.forEach(bg => bg.classList.remove("animated-bg"));
animated_bgs_texts.forEach(text => text.classList.remove("animated-bg-text"));

24. sticky-navbar

The effect is shown in the figure :

24.gif

  1. CSS: Basic styles + CSS The gradient + Fixed positioning navigation .
  2. JavaScript: Scroll Events . As shown in the above example, part of the source code is as follows :
window.addEventListener("scroll",e => {
if(window.scrollY > nav.offsetHeight + 100) {
nav.classList.add("active");
}else{
nav.classList.remove("active");
}
})
PS: The layout of the mobile terminal is also made here .

25. double-slider

The effect is shown in the figure :

25.gif

  1. CSS: Basic styles + CSS The gradient + Displacement transformation .
  2. JavaScript: The implementation idea of the rotation chart , It's mainly the use of transformY Mobile use transformX. As shown in the above example, part of the source code is as follows :
function setTransform(){
let translate = isHorizontal() ? "translateX" : "translateY";
leftSlide.style.transform = `${ translate }(${position * currentIndex}px)`;
rightSlide.style.transform = `${ translate }(${-(position * currentIndex)}px)`;
}

26. toast-notification

The effect is shown in the figure :

26.gif

  1. CSS: Basic styles + Basic style of message prompt box .
  2. JavaScript: Encapsulate a randomly created message prompt box . As shown in the above example, part of the source code is as follows :
function createNotification({message = null,type = null,auto = false,autoTime = 1000,left = 0,top = 0}){
const toastItem = createEle("div");
let closeItem = null;
if(!auto){
closeItem = createEle("span");
closeItem.innerHTML = "&times;";
closeItem.className = "toast-close-btn";
}
toastItem.className = `toast toast-${type}`;
toastItem.textContent = message;
if(closeItem)toastItem.appendChild(closeItem);
container.appendChild(toastItem);
const leftValue = (left - toastItem.clientWidth) <= 0 ? 0 : left - toastItem.clientWidth - 30;
const topValue = (top - toastItem.clientHeight) <= 0 ? 0 : top - toastItem.clientHeight - 30;
toastItem.style.left = leftValue + 'px';
toastItem.style.top = topValue + 'px';
if(auto){
setTimeout(() => {
toastItem.remove();
},autoTime);
}else{
closeItem.addEventListener("click",() => {
toastItem.remove();
});
}
}

The implementation idea of message prompt box can refer to This article .

27. github-profiles

The effect is shown in the figure :

27.gif

  1. CSS: Basic styles .
  2. JavaScript:try-catch Exception handling syntax + axios API request github API + async-await grammar . As shown in the above example, part of the source code is as follows :
async function getRepoList(username){
try {
const { data } = await axios(githubAPI + username + '/repos?sort=created');
addRepoList(data);
} catch (error) {
if(error.response.status == 404){
createErrorCard(" Error finding warehouse !");
}
}
}

28. double-click-heart

The effect is shown in the figure :

28.gif

  1. CSS: Basic styles + CSS Draw love .
  2. JavaScript: Calculation of the number of events . As shown in the above example, part of the source code is as follows :
function clickHandler(e){
if(clickTime === 0){
clickTime = Date.now();
}else{
if(Date.now() - clickTime < 400){
createHeart(e);
clickTime = 0;
}else{
clickTime = Date.now();
}
}
}

29. auto-text-effect

The effect is shown in the figure :

29.gif

  1. CSS: Basic styles .
  2. JavaScript: Timer + The calculation of timer time . As shown in the above example, part of the source code is as follows :
let time = 300 / speed.value;
writeText();
function writeText(){
text.innerHTML = string.slice(0,idx);
idx++;
if(idx > string.length){
idx = 1;
}
setTimeout(writeText,time);
}
speed.addEventListener("input",e => time = 300 / e.target.value);

30. password generator

The effect is shown in the figure :

30.gif

  1. CSS: Basic style layout .
  2. JavaScript: Switch between Chinese and English + Select the box to listen for events + random number + copy API. As shown in the above example, part of the source code is as follows :
function getRandomLower(){
// a ~ z Of code by 97 ~ 122
// According to the charCodeAt() Method to get 
return String.fromCharCode(Math.floor(Math.random() * 26) + 97);
}
function getRandomUpper(){
// A ~ Z Of code by 65 ~ 90
// According to the charCodeAt() Method to get 
return String.fromCharCode(Math.floor(Math.random() * 26) + 65);
}
function getRandomNumber(){
// 0 ~ 9 Of code by 48 ~ 57
// According to the charCodeAt() Method to get 
return String.fromCharCode(Math.floor(Math.random() * 10) + 48);
}

31. good-cheap-fast

The effect is shown in the figure :

31.gif

  1. CSS:CSS Implement switch widget style + Basic layout style .
  2. JavaScript:input Of change Event monitoring . As shown in the above example, part of the source code is as follows :
const checkBoxElements = document.querySelectorAll(".switch-container input[type='checkbox']");
checkBoxElements.forEach(item => item.addEventListener("change",e => {
const index = Array.from(checkBoxElements).indexOf(e.target);
if(Array.from(checkBoxElements).every(v => v.checked)){
if(index === 0){
checkBoxElements[2].checked = false;
}else if(index === 1){
checkBoxElements[0].checked = false;
}else{
checkBoxElements[1].checked = false;
}
}
}));

32. notes-app

The effect is shown in the figure :

32.gif

  1. CSS: Basic styles + Card layout .
  2. JavaScript:marked.js Use + localStorage API Store the data + Calculation of mouse cursor position . As shown in the above example, part of the source code is as follows :
 on($(".edit", note), "click", e => {
const isFocus = textarea.getAttribute("data-focus");
if (isFocus === "false") {
textarea.setAttribute("data-focus","true");
if(textarea.classList.contains("hidden")){
textarea.classList.remove("hidden");
}
if(!focusStatus){
textarea.value = notes[index].text;
}
const text = textarea.value.trim();
// console.log(text);
if (textarea.setSelectionRange) {
textarea.focus();
textarea.setSelectionRange(text.length, text.length);
}else if (textarea.createTextRange) {
const range = textarea.createTextRange();
range.collapse(true);
range.moveEnd('character', text.length);
range.moveStart('character', text.length);
range.select();
}
} else {
textarea.setAttribute("data-focus","false");
notes[index].text = textarea.value;
main.innerHTML = marked(notes[index].text);
setData("notes", notes);
}
});

33. animated-countdown

The effect is shown in the figure :

33.gif

  1. CSS: Basic styles + Displacement 、 rotate 、 Zoom animation .
  2. JavaScript: Animation Events + Animation creation and reset . As shown in the above example, part of the source code is as follows :
function runAnimation(){
const numArr = $$("span",numGroup);
const nextToLast = numArr.length - 1;
numArr[0].classList.add("in");
numArr.forEach((num,index) => {
num.addEventListener("animationend",e => {
const {animationName} = e;
if(animationName === "goIn" && index !== nextToLast){
num.classList.remove("in");
num.classList.add("out");
}else if(animationName === "goOut" && num.nextElementSibling){
num.nextElementSibling.classList.add("in");
}else{
counter.classList.add("hide");
final.classList.add("show");
}
})
})
}
function resetAnimation(){
counter.classList.remove("hide");
final.classList.remove("show");
const numArr = $$("span",numGroup);
if(numArr){
numArr.forEach(num => num.classList.value = '');
numArr[0].classList.add("in");
}
}

34. image-carousel

The effect is shown in the figure :

34.gif

  1. CSS: Basic style layout .
  2. JavaScript: The timer realizes the rotation . As shown in the above example, part of the source code is as follows :
function changeCarouselItem(){
if(currentIndex > carouselItems.length - 1){
currentIndex = 0;
}else if(currentIndex < 0){
currentIndex = carouselItems.length - 1;
}
carousel.style.transform = `translateX(-${ currentIndex * carouselContainer.offsetWidth }px)`;
}
PS: There's an extra hole in the timer , in other words , For example, we use setTimeout Simulation Implementation setInterval There will be problems with the method here , I am here js Comments are added to the code to explain .
// let interval = mySetInterval(run,1000);
// Why use this method can't achieve the desired effect?
// Use this method as follow to replace window.setInterval,clicked the prev button more to get the stranger effect.
// Maybe this method does not conform to the specification,So make sure to use window.setInterval.
// function mySetInterval(handler,time = 1000){
// let timer = null;
// const interval = () => {
// handler();
// timer = setTimeout(interval,time);
// }
// interval();
// return {
// clearMyInterval(){
// clearTimeout(timer);
// }
// }
// }

This is because we use setTimeout The implemented timer does not conform to the specification ,setInterval By default there will be 10ms Delayed execution of .
Reference specifications .

35. hover board

The effect is shown in the figure :

35.gif

  1. CSS: Basic styles + CSS The gradient .
  2. JavaScript: Creating elements dynamically + Suspension Events . As shown in the above example, part of the source code is as follows :
function setColor(element){
element.style.background = `linear-gradient(135deg, ${ randomColor() } 10%, ${ randomColor() } 100%)`;
element.style.boxShadow = `0 0 2px ${ randomColor() },0 0 10px ${ randomColor() }`;
}
function removeColor(element){
element.style.background = `linear-gradient(135deg, #1d064e 10%, #10031a 100%)`;
element.style.boxShadow = `0 0 2px #736a85`;
}

36. pokedex

The effect is shown in the figure :

36.gif

  1. CSS: Basic style layout + CSS The gradient .
  2. JavaScript:fetch API Interface request + Create cards . As shown in the above example, part of the source code is as follows :
function createPokemon(pokemon){
const pokemonItem = document.createElement("div");
pokemonItem.classList.add("pokedex");
const name = pokemon.name[0].toUpperCase() + pokemon.name.slice(1).toLowerCase();
const id = pokemon.id.toString().padStart(3,"0");
const poke_types = pokemon.types.map(type => type.type.name);
const type = main_types.find(type => poke_types.indexOf(type) > -1);
const color = colors[type];
pokemonItem.style.background = `linear-gradient(135deg, ${ color } 10%, ${ randomColor() } 100%)`;
pokemonItem.innerHTML = `
<div class="pokedex-avatar">
<img src="https://pokeres.bastionbot.org/images/pokemon/${pokemon.id}.png" alt="the pokemon">
</div>
<div class="info">
<span class="number">#${ id }</span>
<h3 class="name">${ name }</h3>
<small class="type">Type:<span>${ type }</span></small>
</div>`;
container.appendChild(pokemonItem);
}
In particular : The interface seems unstable , Maybe it's my Internet reason , The picture is not loaded .

37. mobile-tab-navigation

The effect is shown in the figure :

37.gif

  1. CSS: Basic style layout + CSS Gradient to achieve mobile phone layout .
  2. JavaScript: The feeling is that the mobile terminal realizes a rotation map switching , utilize opacity Set up , There's nothing to say . As shown in the above example, part of the source code is as follows :
function hideAllElement(nodeList){
nodeList.forEach(item => item.classList.remove("active"));
}
navItems.forEach((item,index) => {
item.addEventListener("click",() => {
hideAllElement(navItems);
hideAllElement(carouselItems);
item.classList.add("active");
carouselItems[index].classList.add("active");
})
})

38. password-strength-background

The effect is shown in the figure :

38.gif

  1. CSS: In fact, it mainly uses tailwind.css This atomization CSS frame .
  2. JavaScript: Listen for input box events , Then change the background blur . As shown in the above example, part of the source code is as follows :
password.addEventListener("input",e => {
const { value } = e.target;
const blur = 20 - value.length * 2;
background.style.filter = `blur(${ blur }px)`;
});

39. 3D-background-boxes

The effect is shown in the figure :

39.gif

  1. CSS:vw、vh Layout + skew Tilt shift .
  2. JavaScript: loop + Setting of background image positioning . As shown in the above example, part of the source code is as follows :
function createBox(){
for(let i = 0;i < 4;i++){
for(let j = 0;j < 4;j++){
const box = document.createElement("div");
box.classList.add("box");
box.style.backgroundPosition = `${ -j * 15 }vw ${ -i * 15 }vh`;
boxContainer.appendChild(box);
}
}
}

40. Verify Your Account

The effect is shown in the figure :

40.gif

  1. CSS: Basic style layout + input Some special style settings .
  2. JavaScript:JavaScript focus event . As shown in the above example, part of the source code is as follows :
.code-container .code:focus {
border-color: #2397ef;
}
.code::-webkit-outer-spin-button,
.code::-webkit-inner-spin-button {
-webkit-appearance: none;
margin: 0;
}
.code:valid {
border-color: #034775;
box-shadow: 0 10px 10px -5px rgba(0, 0, 0, 0.25);
}
function onFocusHandler(nodeList){
onFocus(nodeList[0]);
nodeList.forEach((node,index) => {
node.addEventListener("keydown",e => {
// console.log(e.key);
if(e.key >= 0 && e.key <= 9){
nodeList[index].value = "";
setTimeout(() => onFocus(nodeList[index + 1]),0);
}else{
setTimeout(() => onFocus(nodeList[index - 1]),0);
}
})
});
}
function onFocus(node){
if(!node)return;
const { nodeName } = node;
return nodeName && nodeName.toLowerCase() === "input" && node.focus();
}

41. live-user-filter

The effect is shown in the figure :

41.gif

  1. CSS: Basic style layout + Scroll bar style .
  2. JavaScript:fetch API Interface request + input Event filtering data . As shown in the above example, part of the source code is as follows :
async function requestData(){
const res = await fetch('https://randomuser.me/api?results=50');
const { results } = await res.json();
result.innerHTML = "";
results.forEach(user => {
const listItem = document.createElement("li");
filterData.push(listItem);
const { picture:{ large },name:{ first,last },location:{ city,country } } = user;
listItem.innerHTML = `
<img src="${ large }" alt="${ first + ' ' + last }" />
<div class="user-info">
<h4>${ first } ${ last }</h4>
<p>${ city },${ country }</p>
</div>
`;
result.appendChild(listItem);
})
}

42. feedback-ui-design

The effect is shown in the figure :

42.gif

  1. CSS:CSS Draw love + Basic style layout .
  2. JavaScript: Implementation of tab switching function . As shown in the above example, part of the source code is as follows :
ratingItem.forEach(item => {
item.addEventListener("click",e => {
siblings(item).forEach(sib => sib.classList.remove("active"));
item.classList.add("active");
selectRating = item.innerText;
})
});
send.addEventListener("click",() => {
selectRatingItem.innerText = selectRating;
sendPage.classList.add("hide");
receivePage.classList.remove("hide");
});
back.addEventListener("click",() => {
selectRating = $(".rating.active").innerText;
selectRatingItem.innerText = $(".rating.active").innerText;
sendPage.classList.remove("hide");
receivePage.classList.add("hide");
});

43. custom-range-slider

The effect is shown in the figure :

43.gif

  1. CSS:input Element style settings ( Compatible writing ) + Basic style layout .
  2. JavaScript:input range Elemental input Event monitoring . As shown in the above example, part of the source code is as follows :
input[type="range"]::-webkit-slider-runnable-track {
background-image: linear-gradient(135deg, #E2B0FF 10%, #9F44D3 100%);
width: 100%;
height: 12px;
cursor: pointer;
border-radius: 4px;
}
input[type="range"]::-webkit-slider-thumb {
-webkit-appearance: none;
width: 25px;
height: 25px;
border-radius: 50%;
background-image: linear-gradient(135deg, #d9e2e6 10%, #e4e1e4 100%);
border: 1px solid #b233e4;
cursor: pointer;
margin-top: -6px;
}
range.addEventListener("input",e => {
// string to the number
const value = +e.target.value;
const label = e.target.nextElementSibling;
const range_width = getStyle(e.target,"width");//XXpx
const label_width = getStyle(label,"width");//XXpx
// Due to contain px,slice the width
const num_width = +range_width.slice(0,range_width.length - 2);
const num_label_width = +label_width.slice(0,label_width.length - 2);
const min = +e.target.min;
const max = +e.target.max;
const left = value * (num_width / max) - num_label_width / 2 + scale(value,min,max,10,-10);
label.style.left = `${left}px`;
label.innerHTML = value;
});

44. netflix-mobile-navigation

The effect is shown in the figure :

44.gif

  1. CSS: Change of navigation width + CSS The gradient + Basic style layout .
  2. JavaScript: Click the button to switch the display and hiding of the navigation bar . As shown in the above example, part of the source code is as follows :
function changeNav(type){
navList.forEach(nav => nav.classList[type === "open" ? "add" : "remove"]("visible"));
}

45. quiz-app

The effect is shown in the figure :

45.gif

  1. CSS: Card layout + Basic styles .
  2. JavaScript: Form submission + Calculation of multiple-choice questions . As shown in the above example, part of the source code is as follows :
submit.addEventListener("click",() => {
const answer = getSelected();
if(answer){
if(answer === quizData[currentQuestion].correct){
score++;
}
currentQuestion++;
if(currentQuestion > quizData.length - 1){
quizContainer.innerHTML = `
<h2>You answered ${ score } / ${ quizData.length } questions correctly!</h2>
<button type="button" class="btn" onclick="location.reload()">reload</button>
`
}else{
loadQuiz();
}
}
})

46. testimonial-box-switcher

The effect is shown in the figure :

46.gif

  1. CSS:CSS Animation + Change of width to achieve progress bar + font-awesome Use of font library + Basic style layout .
  2. JavaScript: The use of timers , Note that the execution time of the timer is the same as the execution animation time of the progress bar . As shown in the above example, part of the source code is as follows :
.progress-bar {
width: 100%;
height: 4px;
background-color: #fff;
animation: grow 10s linear infinite;
transform-origin: left;
}
@keyframes grow {
0% {
transform: scaleX(0);
}
}
function updateTestimonial(){
const { text,name,position,photo } = testimonials[currentIndex];
const renderElements = [testimonial,username,role];
userImage.setAttribute("src",photo);
order.innerHTML = currentIndex + 1;
[text,name,position].forEach((item,index) => renderElements[index].innerHTML = item);
currentIndex++;
if(currentIndex > testimonials.length - 1){
currentIndex = 0;
}
}
In particular :CSS It can also realize the progress bar .

47. random-image-feed

The effect is shown in the figure :

47.gif

  1. CSS: Picture layout + Basic style layout + CSS Implementation of prompt box ( location + Pseudo elements ) + CSS Get back to the top .
  2. JavaScript: random number + ( Monitoring of rolling events ) Controls the display and hiding of the back to top button . As shown in the above example, part of the source code is as follows :
function onLoad(rows = 5) {
container.innerHTML = "";
for (let i = 0; i < rows * 3; i++) {
const imageItem = document.createElement("img");
imageItem.src = `${refreshURL}${getRandomSize()}`;
imageItem.alt = "random image-" + i;
imageItem.loading = "lazy";
container.appendChild(imageItem);
}
}
function getRandomSize() {
return `${getRandomValue()}x${getRandomValue()}`;
}
function getRandomValue() {
return Math.floor(Math.random() * 10) + 300;
}
window.onload = () => {
changeBtn.addEventListener("click", () => onLoad());
window.addEventListener("scroll", () => {
const { scrollTop, scrollHeight } = document.documentElement || document.body;
const { clientHeight } = flexCenter;
back.style.display = scrollTop + clientHeight > scrollHeight ? 'block' : 'none';
})
onLoad();
}

48. todo-list

The effect is shown in the figure :

48.gif

  1. CSS: Basic style layout + CSS The gradient .
  2. JavaScript:keydown And contextmenu Event monitoring + localStorage API Store the data . As shown in the above example, part of the source code is as follows :
function addTodo(todo){
let inputValue = input.value;
if(todo){
inputValue = todo.text;
}
if(inputValue){
const liItem = document.createElement("li");
liItem.innerText = inputValue;
if(todo && todo.complete){
liItem.classList.add("complete");
}
liItem.addEventListener("click",() => {
liItem.classList.toggle("complete");
updateList();
});
liItem.addEventListener("contextmenu",(e) => {
e.preventDefault();
liItem.remove();
updateList();
});
todoList.appendChild(liItem);
input.value = "";
updateList();
}
}
function updateList(){
const listItem = $$("li",todoList);
const saveTodoData = [];
listItem.forEach(item => {
saveTodoData.push({
text:item.innerText,
complete:item.classList.contains("complete")
})
});
localStorage.setItem("todoData",JSON.stringify(saveTodoData));
}

49. insect-catch-game

The effect is shown in the figure :

49.gif

  1. CSS: Basic style layout .
  2. JavaScript: Switch between Chinese and English + Replace the text in the element ( Does not contain label elements ) + The use of timers . As shown in the above example, part of the source code is as follows :
function replaceText(el,text,wrapSymbol = ""){
let newText = [];
if(wrapSymbol){
// why not use split method?,because it can filter the wrap symbol.
const getIndex = (txt) => txt.search(new RegExp("\\" + wrapSymbol));
let searchIndex = getIndex(text),i = 0,len = text.length;
while(searchIndex !== -1){
newText.push(text.slice(i,searchIndex) + wrapSymbol);
i = searchIndex;
if(getIndex(text.slice(searchIndex + 1)) === -1){
newText.push(text.slice(searchIndex + 1,len));
}
searchIndex = getIndex(text.slice(searchIndex + 1));
}
}
const walk = (el,handler) => {
const children = Array.from(el.childNodes);
let wrapIndex = children.findIndex(node => node.nodeName.toLowerCase() === "br");
children.forEach((node,index) => {
if(node.nodeType === 3 && node.textContent.replace(/\s+/,"")){
wrapSymbol ? handler(node,newText[index - wrapIndex < 0 ? 0 : index - wrapIndex]) : handler(node,text);;
}
});
}
walk(el,(node,txt) => {
const parent = node.parentNode;
parent.insertBefore(document.createTextNode(txt),node);
parent.removeChild(node);
});
}

Reference for the implementation of the above tool functions Here to achieve .

In particular : This example is a comprehensive example .

50. kinetic-loader

The effect is shown in the figure :

50.gif

  1. CSS:CSS Rotate animation + Basic style layout .
    As shown in the above example, part of the source code is as follows :
@keyframes rotateA {
0%,25% {
transform: rotate(0deg);
}
50%,75% {
transform: rotate(180deg);
}
100% {
transform: rotate(360deg);
}
}
@keyframes rotateB {
0%,25% {
transform: rotate(90deg);
}
50%,75% {
transform: rotate(270deg);
}
100% {
transform: rotate(450deg);
}
}

The last day , An additional implementation 404 effect , It's a special ending , Isn't it fancy (^_^). This is a CSS Comprehensive use of animation , As shown below :

51. 404 page

The effect is shown in the figure :

51.gif

  1. CSS:CSS The use of animation + Basic style layout + svg Style settings of icon elements .
    As shown in the above example, part of the source code is as follows :
@keyframes background {
from {
background: linear-gradient(135deg,#e0e0e0 10%,#ffffff 90%);
}
to {
background: linear-gradient(135deg,#ffffff 10%,#e0e0e0 90%);
}
}
@keyframes stampSlide {
0% {
transform: rotateX(90deg) rotateZ(-90deg) translateZ(-200px) translateY(130px);
}
100% {
transform: rotateX(90deg) rotateZ(-90deg) translateZ(-200px) translateY(-4000px);
}
}
@keyframes slide {
0% {
transform: translateX(0);
}
100% {
transform: translateX(-200px);
}
}
@keyframes roll {
0% {
transform: rotateZ(0deg);
}
85% {
transform: rotateZ(90deg);
}
87% {
transform: rotateZ(88deg);
}
90% {
transform: rotateZ(90deg);
}
100% {
transform: rotateZ(90deg);
}
}
@keyframes zeroFour {
0% {
content:"4";
}
100% {
content:"0";
}
}
@keyframes draw {
0% {
stroke-dasharray: 30 150;
stroke-dashoffset: 42;
}
100% {
stroke:rgba(8, 69, 131, 0.9);
stroke-dasharray: 224;
stroke-dashoffset: 0;
}
}
版权声明
本文为[Xi Shui]所创,转载请带上原文链接,感谢
https://qdmana.com/2021/08/20210809165507781s.html

  1. HTML + CSS + JavaScript to achieve cool Fireworks (cloud like particle text 3D opening)
  2. HTML + CSS + JavaScript realizes 520 advertising love tree (including music), which is necessary for programmers to express themselves
  3. Solve the problem of Web front-end deployment server (it can be deployed online without a server)
  4. HTML + CSS + JS make wedding countdown web page template (520 / Tanabata Valentine's Day / programmer advertisement)
  5. What else can driverless minibus do besides "Park connection"?
  6. Cloud native leads the era of all cloud development
  7. NRM mirror source management tool
  8. Bring it to you, flex Jiugong
  9. Lolstyle UI component development practice (II) -- button group component
  10. Deconstruction assignment in ES6
  11. Luo 2 peerless Tang clan was officially launched. The official gave a key point, and the broadcast time was implied
  12. 20初识前端HTML(1)
  13. 当新零售遇上 Serverless
  14. 20 initial knowledge of front-end HTML (1)
  15. When new retail meets serverless
  16. [golang] - go into go language lesson 5 type conversion
  17. [golang] - go into go language lesson 6 conditional expression
  18. HTML5(八)——SVG 之 path 详解
  19. HTML5 (8) -- detailed explanation of SVG path
  20. 需要开通VIP以后页面内容才能复制怎么办?控制台禁用javascript即可
  21. Web前端|CSS入门教程(超详细的CSS使用讲解,适合前端初学者)
  22. 实践积累 —— 用Vue3简单写一个单行横向滚动组件
  23. Serverless 全能选手,再下一城
  24. What if you need to open a VIP to copy the page content? Just disable JavaScript on the console
  25. Web front end | CSS introductory tutorial (super detailed CSS explanation, suitable for front-end beginners)
  26. Practice accumulation - write a single line horizontal scroll component simply with vue3
  27. Dili Reba is thin again. She looks elegant and high in a strapless hollow skirt, and her "palm waist" is beautiful to a new height
  28. Serverless all-round player, next city
  29. The difference between MySQL semi synchronous replication and lossless semi synchronous replication
  30. Vue表单设计器的终极解决方案
  31. The ultimate solution for Vue form designer
  32. Nginx从理论到实践超详细笔记
  33. Yu Shuxin's red backless swimsuit is split to the waist and tail, with a concave convex figure and excessive color matching, and his face is white to dazzling
  34. Nginx ultra detailed notes from theory to practice
  35. 【动画消消乐|CSS】086.炫酷水波浪Loading过渡动画
  36. typecho全站启用https
  37. CCTV has another popular employee. The off-site interpretation is very professional, and the appearance ability is no less than that of Wang Bingbing
  38. [animation Xiaole | CSS] 086. Cool water wave loading transition animation
  39. Enable HTTPS in Typecho
  40. 50天用JavaScript完成50个web项目,我学到了什么?
  41. 根据JavaScript中原生的XMLHttpRequest实现jQuery的Ajax
  42. What have I learned from completing 50 web projects with JavaScript in 50 days?
  43. "My neighbor doesn't grow up" has hit the whole network. There are countless horse music circles, and actor Zhou Xiaochuan has successfully made a circle
  44. 根据JavaScript中原生的XMLHttpRequest实现jQuery的Ajax
  45. Implement the Ajax of jQuery according to the native XMLHttpRequest in JavaScript
  46. Implement the Ajax of jQuery according to the native XMLHttpRequest in JavaScript
  47. 30 + women still wear less T-shirts and jeans. If they wear them like stars, they will lose weight
  48. 数栈技术分享前端篇:TS,看你哪里逃~
  49. Several stack technology sharing front end: TS, see where you escape~
  50. 舍弃Kong和Nginx,Apache APISIX 在趣链科技 BaaS 平台的落地实践
  51. Abandon the landing practice of Kong and nginx, Apache apisik on the baas platform of fun chain technology
  52. 浪迹天涯king教你用elementui做复杂的表格,去处理报表数据(合并表头,合并表体行和列)
  53. 前端HTML两万字图文大总结,快来看看你会多少!【️熬夜整理&建议收藏️】
  54. Wandering around the world king teaches you to use elementui to make complex tables and process report data (merge header, merge table body rows and columns)
  55. 路由刷新数据丢失 - vuex数据读取的问题
  56. Front end HTML 20000 word graphic summary, come and see how much you can【 Stay up late to sort out & suggestions]
  57. Route refresh data loss - vuex data reading problem
  58. Systemctl系统启动Nginx服务脚本
  59. Systemctl system startup nginx service script
  60. sleepless