JavaScript中两个对象之间的区别是什么

Question

Can anyone help me to understand the difference in obj1 and obj2 created in two ways in JavaScript? They look the same in the console.

var obj1 = { 'name': 'blue', 'shade': 'dark'};
var obj2 = JSON.parse('{"name":"blue","shade":"dark"}');

because

 (obj1 === obj2)  is false as 
 (obj1 == obj2) is false

while in javascript console show as

Object {name: "blue", shade: "dark"}
Object {name: "blue", shade: "dark"}

Answer 1

尽管对象的内容相同，但是您具有对两个单独对象的引用，这就是为什么==和===都失败（它们检查引用是否为内容）。

Answer 2

As ABucin said, javascript checks for references, if you still want to check if two jsons are equal you could try using

JSON.stringify(obj1) === JSON.stringify(obj2)

or check for every key (a bit more complicated but more efficient in the case that the keys are in different orders).

Try reading this:

Compare 2 json objects

Answer 3

you are creating an object with obj1 and in obj2 you parsing a JSON object into an object. Since both objects are different (different reference) they are treated as different

You can learn more on this over here