在Vue js中设置div的高度 [英] Set height of a div in vue js

问题描述

我正在使用 vue js .我想使用纯 javascript 根据另一个 div 高度设置一个 div.我面临的问题是我无法使用纯 Java 脚本设置高度.但我可以使用 jquery 设置它.任何人都可以帮我将此 jquery 更改为 javascript .给出了我正在使用的代码

 Vue.nextTick(function () {var offsetHeight = document.getElementById('filterSection').offsetHeight;$(".searchResultSection").css("max-height",`calc(100% - ${offsetHeight}px)`);});

我需要将 jquery 部分更改为 java 脚本.

解决方案

事实上，计算属性 (https://vuejs.org/v2/guide/computed.html#Computed-Properties) 是解决您问题的完美选择:

声明一个计算属性，他将返回 filterSectionHeight

出口默认{名称:应用程序"，计算:{filterSectionHeight() {const filterSectionDOM = document.getElementById("filterSection");返回 filterSectionDOM ?filterSectionDOM.offsetHeight : 0;},}};

在你的组件(或 App 组件)中定义你的 div filterSection 和 searchResultsSection，不要忘记 添加一个 :style 属性 处理模板中提供给 .searchResultsSection 的动态 max-height

<div class="searchResultsSection":style="{'最大高度':`calc(100% - ${filterSectionHeight}px)`}">

在你的 css 中将每个 div 的高度设置为 100%

#app {高度:600px；宽度:100%；}#filterSection {高度:100%；背景:rebeccapurple；//https://en.wikipedia.org/wiki/Eric_A._Meyer}.searchResultsSection{高度:100%；背景:rebeccapurple；不透明度:0.6；}

您可以在这里找到完整的演示 > https://codesandbox.io/s/1rkmwo1wq

I am using vue js . I want to set one div based on another div height, with pure javascript. the problem I am facing is I can't set the height using pure java script. but I can set it using jquery. can any one please help me to change this jquery to javascript . the code I am using is given

 Vue.nextTick(function () {
            var offsetHeight = document.getElementById('filterSection').offsetHeight;
            $(".searchResultSection").css("max-height",`calc(100% - ${offsetHeight}px)`);
           });

I need to change the jquery part into java script.

解决方案

In fact, computed properties (https://vuejs.org/v2/guide/computed.html#Computed-Properties) is the perfect option to solves your problem:

Declare a computed property who will return the filterSectionHeight

export default {
  name: "App",

  computed: {
    filterSectionHeight() {
      const filterSectionDOM = document.getElementById("filterSection");
      return filterSectionDOM ? filterSectionDOM.offsetHeight : 0;   
    },
  }
};

Define your div filterSection and searchResultsSection in your component (or App component), don't forget to add a :style attribute who handle the dynamic max-height provided to .searchResultsSection in your template

<div id="filterSection"></div>
<div class="searchResultsSection"
     :style="{
            'max-height': `calc(100% - ${filterSectionHeight}px)`
     }">
</div>

Set height of each div to 100% in your css

#app {
  height: 600px;
  width: 100%;
}

#filterSection {
  height: 100%;
  background: rebeccapurple; //https://en.wikipedia.org/wiki/Eric_A._Meyer
}

.searchResultsSection{
  height: 100%;
  background: rebeccapurple;
  opacity: 0.6;
}

You will find a full demo here > https://codesandbox.io/s/1rkmwo1wq

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