}//Sets one value}elseif( value !== undefined ) {//单赋值chainable =true;//链式//这种情况也是赋值 如.attr( attributeName, function(index, attr) )传入的value就是一个函数if( !jQuery.isFunction( value ) ) {//如果第四个参数不是函数,raw为trueraw =true; }if( bulk ) {//key为null或...
}//If applicable, access the attribute via the DOM 0 wayif( nameinelem && notxml && !special ) {if( set ) {//We can't allow the type property to be changed (since it causes problems in IE)//rtype = /(button|input)/i,//button 与 input 不允许修改 type属性if( name === "ty...
2. $Dom.data(); 代码语言:javascript 代码运行次数:0 运行 AI代码解释 data: function( key, value ) { var i, name, data,elem = this[ 0 ], attrs = elem && elem.attributes; ... return data; ... } }, 省略绝大部分代码,可以看到,该方法去读取了元素的 attribute,最后返回的 data 会是在...
return dataUser.hasData( elem ) || dataPriv.hasData( elem ); }, data: function( elem, name, data ) { return dataUser.access( elem, name, data ); }, removeData: function( elem, name ) { dataUser.remove( elem, name ); }, // TODO: Now that all calls to _data and _removeD...
access( this, function( value ) { //读的话(.html())只读第一个匹配的目标元素的内容所以是this[0] //写的话(.html(xxx))会循环每个匹配的目标并将其innerHTML置为value var elem = this[ 0 ] || {}, i = 0, l = this.length; //当直接调用html(),并且目标元素是元素节点时,$().html(...
$("body").data();// { foo: 52, bar: { isManual: true }, baz: [ 1, 2, 3 ] } Using thedata()method to update data does not affect attributes in the DOM. To set adata-*attribute value, useattr. Prior to jQuery 1.4.3,.data( obj )completely replaced all data. Since jQuery...
深入学习jquery源码之data(),深入学习jquery源码之data()jQuery.data(element,[key],[value])概述:在元素上存放数据,返回jQuery对象。注意:这是一个底层方法。你应当使用.data()来代替。此方法在jQuery1.8中删除,但你仍然可以通过$._data(element,"events")调试事件数据
The jQuery attr() method is used to get attribute values.The following example demonstrates how to get the value of the href attribute in a link:Example $("button").click(function(){ alert($("#w3s").attr("href")); }); Try it Yourself » The next chapter explains how to set ...
Defines an object with additional attributes to be used in a "script" or "jsonp" request. The key represents the name of the attribute and the value is the attribute's value. If this object is provided it will force the use of a script-tag transport. For example, this can be used ...
14.hasClass, removeClass didn’t work in IE if the attribute contained a carriage return (\r) character. #7673 15.Fix a regresion in 1.4.4 where calling $.fn.data without arguments breaks on non-DOM elements. #7524 16.Fix memory leaks in IE caused by the custom abort function of $...