<!DOCTYPE html> Add a class to an element p { margin: 10px; font-size: 22px; } .myclass { color: #FA5858; } .highlight { background: #CEF6F5; } jQuery Exercises and Solution. JavaScript Code:$( "p" ).first().addClass( "highlight" ); $( "p" ).last()....
//源码8449行 removeClass: function( value ) { var classes, elem, cur, curValue, clazz, j, finalValue, i = 0; //作用同上 if ( isFunction( value ) ) { return this.each( function( j ) { jQuery( this ).removeClass( value.call( this, j, getClass( this ) ) ); } ); } //...
.addClass( className )Returns:jQuery Description:Adds the specified class(es) to each element in the set of matched elements. version added:1.0.addClass( className ) className Type:String One or more space-separated classes to be added to the class attribute of each matched element. ...
toggleClass(class|fn[,sw]) 概述 如果存在(不存在)就删除(添加)一个类。 参数 classString CSS类名 class,switchString,Boolean 1:要切换的CSS类名. 2:用于决定元素是否包含class的布尔值。 switchBoolean 用于决定元素是否包含class的布尔值。 function(index, class,switch)[, switch]Function,Boolean 1:用来...
❮ jQuery HTML/CSS Methods Example Add a class name to the first element: $("button").click(function(){ $("p:first").addClass("intro"); }); Try it Yourself » Definition and Usage The addClass() method adds one or more class names to the selected elements. This ...
.addClass( className [, options ] ) className Type:String One or more class names (space separated) to be added to the class attribute of each matched element. options Type:Object All animation settings. All properties are optional.
}if( value &&typeofvalue === "string") {//得到传入的class数组classNames =value.split( core_rspace );//this表示调用此方法的jQuery对象,可能有多个for( i = 0, l =this.length; i < l; i++) { elem=this[ i ];//元素类型节点类型:元素element 1;属性attr 2;文本text 3;注释comments 8...
$('.btn').hover(function () {$(this).addClass('hover');}, function () {$(this).removeClass('hover');}); 1. 你只需要添加必要的CSS即可。更简单的方法是使用toggleClass 方法: $('.btn').hover(function () {$(this).toggleClass('hover');}); ...
.addClass( className [, options ] ) className Type:String One or more class names (space separated) to be added to the class attribute of each matched element. options Type:Object All animation settings. All properties are optional.
jQuery ExercisesTest Yourself With Exercises Exercise: Use a jQuery method to insert the text "YES!" at the end of a element. $("p"). ("YES!"); Submit Answer » Start the ExercisejQuery HTML ReferenceFor a complete overview of all jQuery HTML methods, please go to our jQuery...