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watak

返回值:ObjectjQuery.each(object, [callback])

概述

通用例遍方法,可用于例遍对象和数组。

不同于例遍 jQuery 对象的 $().each() 方法,此方法可用于例遍任何对象。回调函数拥有两个参数:第一个为对象的成员或数组的索引,第二个为对应变量或内容。如果需要退出 each 循环可使回调函数返回 false,其它返回值将被忽略。

参数

object,[callback]Object,FunctionV1.0

object:需要例遍的对象或数组。

callback:每个成员/元素执行的回调函数。

示例

描述:

例遍数组,同时使用元素索引和内容。

jQuery 代码:
$.each( [0,1,2], function(i, n){
  alert( "Item #" + i + ": " + n );
});

描述:

例遍对象,同时使用成员名称和变量内容。

jQuery 代码:
$.each( { name: "John", lang: "JS" }, function(i, n){
  alert( "Name: " + i + ", Value: " + n );
});
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