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Most people do not understand the knowledge points of this article "how to use innerHTML in JavaScript", so the editor summarizes the following content, detailed content, clear steps, and has a certain reference value. I hope you can get something after reading this article. Let's take a look at this "how to use innerHTML in JavaScript" article.

How to use JavaScript innerHTML

(1) innerHTML can insert HTML code directly into specified nodes.

Syntax:

NodeObject [XSS _ clean] = HTMLCode

Where nodeObject is the node object and HTMLCode is the HTML code.

Note: innerHTML will overwrite the original HTML code.

For example, add three new nodes to the node of id= "demo":

Div id= "demo" >

Div > Click here to add a new node / div >

/ div >

Script type= "text/javascript" >

Document.getElementById ("demo") .onclick=function () {

This [XSS _ clean] = "div > this is the new node 1/div > div > this is the new node 2/div > div > this is the new node 3/div >"

}

/ script >

How does Javascript get sibling nodes

The so-called sibling node refers to the previous node or the next node of the current node.

Get the previous node

In Javascript, the previous node is obtained through previousSibling.

Syntax:

NodeObject.previousSibling

Where nodeObject is the node object (element node).

Under IE, blank nodes between nodes (spaces, carriage returns, and Tab keys) are ignored; not under browsers that follow the W3C specification (Chrome, FireFox, Safari, etc.).

Take a look at the following code:

# demo {

Height:180px

Width:250px

Padding:0px 10px 10px 10px

Border:1px solid # ccc

Background-color:#ededed

}

# demo div {

Height:50px

Width:250px

Margin-top:10px

Text-align:center

Line-height:50px

Background-color:#ccc

}

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