jquery adds event_html/css_WEB-ITnose to HTML elements-HTML Tutorial-php.cn

jquery adds event_html/css_WEB-ITnose to HTML elements

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Release： 2016-06-24 12:06:38

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In a piece of html code,
How to use js or jquey to change it into

Reply to discussion (solution)

Add an ID to the button

Js--JQ:
$("#bt1").attr("onclick",function (){
alert("111");
})

About this

As long as you can find this element, the event is still easy to add

$('button').click(function(){
});

Add an ID to the button

Js--JQ:
$("#bt1").attr("onclick",function(){
alert("111");
})

About like this

Using this method, why does alert execute when I append this html code segment, but the "click" button after appending does not execute

Add an ID to the button

Js--JQ:
$("#bt1").attr("onclick",function(){
alert("111");
})

About like this

Use this Method, why does alert execute when I append this html code segment, but the "click" button after appending does not execute?

Then you can check which version of jq you are using. Please read the documentation for details
Low version can use

$("#bt1").live("click",function(){});

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High version can use:

$("body").on("click","#bt1",function(){});

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Add an ID to the button

Js--JQ:
$("#bt1").attr("onclick",function(){
alert("111");
})

Probably like this

Using this method, why does alert execute when I append this html code segment, but after appending " Clicking the " button will not execute

Then you can check which version of jq you are using. Please read the documentation for details
You can use lower versions

$("#bt1").live("click",function(){});

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Use higher versions:

$("body").on("click","#bt1",function(){});

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Why is it called when the event is bound instead of when the button is clicked?

Add an ID to the button
< button type="button" id="bt1">click

Js--JQ:
$("#bt1").attr("onclick",function() {
alert("111");
})

Probably like this

Using this method, why does alert execute when I append this html code segment, and append The "Click" button after that will not be executed

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>无标题文档</title></head><script type="text/javascript" src="jquery-1.js"></script><script type="text/javascript">  var sa =  $("#bt1");   function ale(){	     //alert(sa)		 document.getElementById('bt1').setAttribute('onclick','gogogo()')	 	   }	 function  gogogo(){		     alert("ou yeah");		 }</script><body><input  type="button" id="bt1" value="123"/><input type="button" id="bt2"  value="123312" onclick="ale()" /></body></html>

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It has been tested and can be used. Remember to import JQ