About the problem of inserting a piece of html code into an empty div and then getting the height of the div

now there is an empty div on the page. I insert a html into it with js, and then get the height of the div. I find that sometimes the height of the div is not accurate. What can you do to solve it?

Javascript css html
Apr.02,2022

paste the code out, otherwise you don't know what happens

add a line document.body.scrollHeight; to force emptying the layout queue

before getting it.
insert a html into it with js, and then get the height of the div

Note that to get the height after the DOM rendering is complete, you can use 

.addEventListener('DOMContentLoaded',function(){    // .attachEvent (IE 678)

or 

setTimeout(() => { .. }, 0)
because it takes time to insert dom and render it, sometimes the rendering is not finished when you get the height (especially after you have just executed the insert dom logic followed by the method to get the height). So it will cause the problem of obtaining the height incorrectly!

you can add a timer: 

setTimeout(() => {
  // ...
}, 20);
The

dom operation results in Reflow, which is not a problem if you insert block-level elements (web rendering process: html- > css- > js). However, if you insert inline elements (especially images) and the previous html- > css operation does not give height, then height can only be reflected in the rendering process, and you do not finish rendering when you get the height, so it will cause height problems. The solution has been given by the great gods to obtain height through setTimeout delay. All the answers without code are hooligans, and the pictures are added by themselves. 

<div class="bgImg"></div>

<script>
    var odiv = document.getElementById('bgImg');
    odiv.innerHTML = '<img src="test.jpg">'
    
    setTimeout(() => {
        var oHeight = odiv.scrollHeight;
        console.log(oHeight);
    },100)
</script>

Previous: How to transfer the picture obtained by el-input to the next page by vue

Next: H5 after capturing the current screen using canvas, can you directly call Wechat api and share it to moments?

css mysql arrays josn react html typescript webpack npm sass R objective-c .net sql-server jquery python-3.x angularjs django angular excel regex iphone ajax linux xml pandas vba spring database wordpress string wpf xcode windows bash postgresql oracle multithreading eclipse list firebase algorithm macos forms image scala visual-studio azure bootstrap spring-boot react-native python-2.7 docker performance function winforms matlab powershell apache dataframe api sqlite numpy rest shell selenium flutter dart maven loops qt swing android-studio csv express file class tensorflow sorting codeigniter perl
MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1ea9796-5cd77.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1ea9796-5cd77.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
Need Help?