Vue + vux scrolltop implementation locates to specific DOM (scrollintoview())

Li gulare 2020-11-12 23:49:45
vue vux scrolltop implementation locates

First, let's see the final operation effect .

Project background :

Technology stack : vue+vux+nodejs

demand : The list of automobile brands can be indexed by letters


Implement this requirement in development , I thought it was not a piece of cake , As a man of experience bug The programmer , I won't blow anything else , Minimum Ctrl+C It's still pretty good .

Although my ability to reproduce MAX, But at least the function points should be combed first .

There are two steps to realize this function ,

First, click to find the location you need to locate ,

The second trigger page scrolls directly to this location .

so easy Well ~

I steal the little bell from my program warehouse with the power of thunder Ctrl+C A piece of code :

as follows :

document.querySelector('#id'); // Get the content corresponding to the node found by clicking the node and control the scrolling

$(window).scrollTop($('#' + s + '1').offset().top); // Jump to

Because... Is not used in the project jQuery, When you use it, put $ Get rid of . Made a little change

document.documentElement.scrollTop = document.querySelector('#id').offset().top);

prosperous , Be on the safe side , The program runs .

I don't think so , Search the whole network as long as it is used scrollTop Neither. .

Because in vue Use in scrollTo Can't assign a value , Always 0.

At the point of solving program problems , I haven't met my opponent yet . I've said so much about how to do it ?

Please take a look at the summary below .

In the course of trial and error, I found scrollIntoView() Method can realize positioning display .

See the following program for details , In summary, there are three points .

1. In need of positioning dom Create a hidden dom

2. Set the dom Elements position:relative Hidden dom position:absolute;

3. Locate the click point to the hidden dom that will do

Um. , Let's summarize it here for the moment , Here is the source code for reference .

perfect ~

methods: {
<!-- Alphabetic navigation start -->
<div class="fixed-nav" style="opacity: 1; display: block;">
<ul class="rows-box">
<li v-for="(item, index) in listAll" :key="index" :id="'char_'+index">
<a @click="jump(index)">{
<div class="alert" style="display: none;"><span>Y</span></div>
<!-- Alphabetic navigation end -->
<div class="brand-list bybrand_list" v-for="(item, index) in listAll" :key="index">
<div :id="'tchar_nav_'+index" class="positionTo"></div>
<div :id="'char_nav_'+index" class="tt-small phone-title" :data-key="index">
<div class="box">
<li id="char_nav_audi" v-for="(item2, index2) in item" :key="index2">
<style lang="less" scoped>
position: relative;
position: absolute;
height: 30px;
background: transparent;
width: 30px;
background: red;
z-index: 99;


I'm Li gulare , Four years java Development , Four years of front end products , I'm a front-end architect for today's headlines , Lifelong learner . It is said that he loves development , Those who love sharing and high value are concerned about the official account of WeChat buddy 【 Liguulare 】

本文为[Li gulare]所创,转载请带上原文链接,感谢

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