How to convert html dom object to jquery object

Conversion method: If it is already a DOM object, you only need to wrap the DOM object with "$()" to get a jQuery object. The specific syntax format is "$(DOM object)".

The operating environment of this tutorial: windows7 system, jquery1.10.0 version, Dell G3 computer.

Convert DOM object to jQuery object:

For a DOM object that is already a DOM object, you only need to wrap the DOM object with $() to get a jQuery object .

For example:

var v=document.getElementById("v"); //DOM对象
var $v=$(v); //jQuery对象

After processing the ordinary DOM object into a jQuery object through the $(DOM) method, we can call the jQuery method.

HTML code

<div>元素一</div><div>元素二</div><div>元素三</div>

JavaScript code

var div=document.getElementsByTagName('div');//DOM对象
var $div=$(div);//jQuery对象
var $first=$div.frist();//找到第一个div元素
$first.css('color','red');//给第一个元素设置颜色

Get the elements of the div node through getElementsByTagName. The result is a DOM collection object, but this object is an array collection (3 div elements). Convert it into a jQuery object through the $(div) method, find the first element and change its color by calling the first and css methods in the jQuery object.

Recommended related video tutorials: jQuery Tutorial (Video)

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