Javascript循环通过对象数组？ [英] Javascript loop through object array?

问题描述

我正在尝试循环使用以下内容：

I am trying to loop through the following:

{
    "messages": [{
        "msgFrom": "13223821242",
        "msgBody": "Hi there"
    }, {
        "msgFrom": "Bill",
        "msgBody": "Hello!"
    }]
}

我想要检索 msgFrom 和 msgBody

我试过：

        for (var key in data) {
           var obj = data[key];
           for (var prop in obj) {
              if(obj.hasOwnProperty(prop)){
                console.log(prop + " = " + obj[prop]);
              }
           }
        }

但控制台日志打印 [对象]

任何想法我做错了什么？

Any ideas what im doing wrong?

推荐答案

看来你可能错过了数据messages属性$ c>，所以循环可能会迭代根 Object 而不是数组：

It appears you may just have missed the "messages" property in the data, so the loop is likely iterating the root Object rather than the Array:

for (var key in data.messages) {
    var obj = data.messages[key];
    // ...
}

除非数据在给定的片段之前设置为消息。

Unless data was set to messages before the given snippet.

但是，您应该考虑对于数组，将其更改为正常的 循环：

Though, you should consider changing that to a normal for loop for the Array:

for (var i = 0, l = data.messages.length; i < l; i++) {
    var obj = data.messages[i];
    // ...
}

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