在比较对象角 [英] Compare objects in Angular

问题描述

是否有可能做一个角深两个目标的比较呢？我想这样做是比较每个键/值对。例如：

Is it possible to do a "deep" comparison of two object in Angular? What I would like to do is compare each key/value pair. For example:

对象1

{
   key1: "value1",
   key2: "value2",
   key3: "value3"
}

对象2

{
   key1: "value1",
   key2: "newvalue",
   key3: "value3" 
}

我需要的是在比较，因为只有键/值对的一个是diffent失败。换句话说，就是所有的键/值对必须准确，否则失败的匹配。这是不是已经内置到角。我敢肯定，我可以写我自己的服务，如果我真的需要，但我希望它已经建成。到angular.equals类似。

What I need is for the comparison to fail since only one of the key/value pairs is diffent. In other words ALL of the key/value pairs must match exactly or else failure. Is this something already built into Angular. I'm sure I could write my own service if I really needed to, but I was hoping it was already built in. Similar to angular.equals.

推荐答案

要比较两个对象，你可以使用：

To compare two objects you can use:

angular.equals（OBJ1，OBJ2）

它确实深比较和不依赖于键的顺序上
请参见 AngularJS文档和一点点的Demo

It does a deep comparison and does not depend on the order of the keys See AngularJS DOCS and a little Demo

var obj1 = {
  key1: "value1",
  key2: "value2",
  key3: {a: "aa", b: "bb"}
}

var obj2 = {
  key2: "value2",
  key1: "value1",
  key3: {a: "aa", b: "bb"}
}

angular.equals(obj1, obj2) //<--- would return true

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