48 lines
		
	
	
		
			1.6 KiB
		
	
	
	
		
			Markdown
		
	
	
	
	
	
		
		
			
		
	
	
			48 lines
		
	
	
		
			1.6 KiB
		
	
	
	
		
			Markdown
		
	
	
	
	
	
|   | --- | |||
|  | title: Object Values | |||
|  | localeTitle: 对象值 | |||
|  | --- | |||
|  | `Object.values()`方法返回给定对象自己的可枚举属性值的数组,其顺序与for ... in循环提供的顺序相同(不同之处在于for-in循环枚举原型链中的属性) )。 | |||
|  | 
 | |||
|  | ## 句法
 | |||
|  | ``` | |||
|  | Object.values(obj)  | |||
|  | ``` | |||
|  | 
 | |||
|  | ### 参数
 | |||
|  | 
 | |||
|  | **OBJ** | |||
|  | 
 | |||
|  | 要返回其可枚举自身属性的对象。 | |||
|  | 
 | |||
|  | [MDN链接](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/values) | |||
|  | 
 | |||
|  | ## 描述
 | |||
|  | 
 | |||
|  | `Object.values()`返回一个数组,其元素是在对象上找到的可枚举属性值。属性的顺序与手动循环对象的属性值所给出的顺序相同。换句话说,对象具有键:值对,并且此方法返回该对象在类数组对象中的所有_值_ 。 | |||
|  | 
 | |||
|  | 请参阅[Object.keys](https://guide.freecodecamp.org/javascript/standard-objects/object/object-keys/) ,它返回该对象在类数组对象中的所有_键_ 。 | |||
|  | 
 | |||
|  | ## 例子
 | |||
|  | ``` | |||
|  | var obj = { foo: 'bar', baz: 42 };  | |||
|  |  console.log(Object.values(obj)); // ['bar', 42]  | |||
|  |   | |||
|  |  // array like object  | |||
|  |  var obj = { 0: 'a', 1: 'b', 2: 'c' };  | |||
|  |  console.log(Object.values(obj)); // ['a', 'b', 'c']  | |||
|  |   | |||
|  |  // array like object with random key ordering  | |||
|  |  var an_obj = { 100: 'a', 2: 'b', 7: 'c' };  | |||
|  |  console.log(Object.values(an_obj)); // ['b', 'c', 'a']  | |||
|  |   | |||
|  |  // getFoo is property which isn't enumerable  | |||
|  |  var my_obj = Object.create({}, { getFoo: { value: function() { return this.foo; } } });  | |||
|  |  my_obj.foo = 'bar';  | |||
|  |  console.log(Object.values(my_obj)); // ['bar']  | |||
|  |   | |||
|  |  // non-object argument will be coerced to an object  | |||
|  |  console.log(Object.values('foo')); // ['f', 'o', 'o']  | |||
|  | ``` | |||
|  | 
 | |||
|  | \* _在Internet Explorer中不起作用_ |