比较JavaScript中的对象 [英] Comparing objects in JavaScript

问题描述

我有此代码:

var object1 = {same:'test'}
var object2 = {same:'test'};       
console.log(object1 === object2)

它在控制台中返回 false .

我也有以下代码:

var object1 = {same:'test'}
var object2 = object1;
console.log(object1 === object2)  

它将在控制台中返回 true .

我知道'==='是一个相等运算符，但是我不知道它如何作用于对象.

I know '===' is an equality operator, but I don't know how it works on objects.

为什么第一个示例返回false?

Why does the first example return false?

推荐答案

看到这个球吗?它的颜色是红色.称它为ball1.

See this ball? Its colour is red. Call it ball1.

看到这个球吗?它的颜色是红色.称它为ball2.

See this ball? Its colour is red. Call it ball2.

ball1和ball2是同一个对象吗?不，它们是碰巧具有相同属性的不同对象.

Is ball1 the same object as ball2? No, they are distinct objects that happen to have identical properties.

看到这个球吗?它的颜色是红色.称它为ball1.

See this ball? Its colour is red. Call it ball1.

我们叫ball1，ball2.

Let's call ball1, ball2.

ball1和ball2是同一个对象吗?是的.他们是同一个球.

Is ball1 the same object as ball2? Yes. They are the same ball.

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