<!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()....
JavaScript添加/删除类名: element.classList.add("className") :添加类名 element.classList.remove("className") :删除类名...("class","three"); //three jQuery添加/删除类名: element.addC...
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 )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. ...
}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...
set( this, "__className__", className ); } // If the element has a class name or if we're passed `false`, // then remove the whole classname (if there was one, the above saved it). // Otherwise bring back whatever was previously saved (if anything), // falling back to the ...
.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.
$(elementFiscaliteCanadaOui).removeClass("radio-inline").addClass('alertElem'); $(elementFiscaliteUsaOui).removeClass("radio-inline").addClass('alertElem'); $(elementFiscaliteAutreOui).removeClass("radio-inline").addClass('alertElem'); ...
用法:$(element).clone(true); 四:属性操作和样式操作 attr() : 用来获取样式和设置样式和属性 removeAttr() : 用来删除元素样式和属性 addClass() :追加样式 removeClass :移除样式 toggleClass : 切换样式 hasClass :判断是否含有某个样式 五:设置和获取HTML 文本和值 ...
.addClass( className [, duration ] [, easing ] [, complete ] ) className Type:String One or more class names (space separated) to be added to the class attribute of each matched element. duration(default:400) Type:NumberorString