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文字

AngularJS: API: ng/function/angular.forEach

angular.forEach

  1. - function in module ng

obj集合中的每个条目调用一次iterator函数,集合可以是一个对象或数组。 iterator函数通过iterator(value, key)形式调用,其中value是对象属性值或数组元素,key是对象属性键或数组元素索引。函数的context是可选参数。

值得注意的是.forEach不会遍历继承的属性,因为它使用hasOwnProperty方法进行过滤。

     var values = {name: 'misko', gender: 'male'};
     var log = [];
     angular.forEach(values, Function(value, key) {
       this.push(key + ': ' + value);
     }, log);
     expect(log).toEqual(['name: misko', 'gender: male']);

用法

angular.forEach(obj, iterator, [context]);

参数

参数 类型 详述
obj ObjectArray

要遍历的对象。

iterator Function

迭代函数。

context
(可选)
Object

要作为迭代函数上下文(this)的对象。

返回值

ObjectArray

obj的引用。


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