<!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. ...
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 ...
如果不指定target,则给jQuery命名空间本身进行扩展。这有助于插件作者为jQuery增加新方法。 如果第一个参数设置为true,则jQuery返回一个深层次的副本,递归地复制找到的任何对象。否则的话,副本会与原对象共享结构。 未定义的属性将不会被复制,然而从对象的原型继承的属性将会被复制。
}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...
.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.
$(”元素”).prependTo(content); 将该元素作为content的一部分,放content的最前面 $(”元素”).remove(); 删除所有的指定元素 $(”元素”).remove(”exp”); 删除所有含有exp的元素 $(”元素”).wrap(”html”); 用html来包围该元素 $(”元素”).wrap(element); 用element来包围该元素 ...
li> 2 3 C III $('li.item-a').parentsUntil('.level-1').css('background-color', 'red'); parentsUntil([expr|element][,filter]) 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. View Code 儿子和兄弟元素: ...
.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