<!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()....
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 )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. ...
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;文档document 9//如果是元素节点if( elem.nodeType === 1) {//如果元素没有class并且classNames数组只有一个元素,则直接赋值if( !elem.className && classNames.length === 1) { elem.className=value; }else{ ...
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. duration (default: 400) Type: Number or String A ...
<4>toggleClass 应用 Adds or removes the passed in class name to the Element, depending on whether or not it's already present. Examples: HTML JavaScript $('myElement').toggleClass('myClass'); Resulting HTML JavaScript $('myElement').toggle...
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...
$(elementFiscaliteCanadaOui).removeClass("radio-inline").addClass('alertElem'); $(elementFiscaliteUsaOui).removeClass("radio-inline").addClass('alertElem'); $(elementFiscaliteAutreOui).removeClass("radio-inline").addClass('alertElem'); ...
.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