如何从对象中提取内容？ [英] How do you extract content out of object?

问题描述

我尝试通过AJAX远程获取数据。

I am trying to get data remotely via AJAX.

当我通过 document.write（obj），我在我的浏览器上得到这个：

When I look at the data via document.write(obj), I get this on my browser:

[object Object]

这是什么意思？这是一个数组或数组数组？

What does this mean? Is this an array or array of arrays?

我对JavaScript非常新，我需要看看这个obj，并得到文本。我真的很感激任何洞察力。

I am very new to JavaScript, I need to look inside this obj and get the text out of. I would really appreciate any insight.

我使用 console.log（data）输出。我需要从此输出中删除 \ 。我试过：

I have used console.log(data), and I am seeing this output. I need to get rid of \ from this output. I tried:

data.strReplace(/\\/g/,'');

无效。

数据如下所示：

["{\"name\":\"ServerA\",\"data\":[[1406284185600,0.092],[1406285985600,0.092]]}]

这里是我看到的屏幕截图：

Here's a screenshot of what I'm seeing:

这是控制台输出：

This is the console output:

推荐答案

不要使用 document.write / code>进行调试。

Don't use document.write() for debugging.

使用 console.log（）并检查浏览器的开发人员工具。

Use console.log() and check your browser's developer tools.

[object Object] 是将对象显示为字符串的方式：你可以看到用 alert（），这是人们错误地用来调试的另一件事。

[object Object] is the way that an object is displayed as a string: you're seeing that because you're displaying the data as HTML. You'd also see that with alert(), which is another thing that people mistakenly use for debugging.

控制台会显示实际的数据，如下所示：

The console will show you the actual piece of data, like this:

：这里有一些错误。

1. 反斜杠有一个原因：它们逃避形成字符串的引号。你想删除它们的唯一原因是将字符串转换为一个对象（这是我假设你想做的。



2. 应该是

1. The backslashes are there for a reason: they escape the quotation marks that form the string. The only reason you'd want to remove them is to convert the string to an object (which is what I assume you're trying to do.

2. You've removed a quotation mark in-between the last closing curly brace and the last closing bracket. It should be

["{\"name\":\"ServerA\",\"data\":[[1406284185600,0.092],[1406285985600,0.092]]"}

这是你有：

["{\"name\":\"ServerA\",\"data\":[[1406284185600,0.092],[1406285985600,0.092]]}

（查看语法高亮的区别。）

(Look at the difference in syntax highlighting.)

您的正则表达式有错字：it应为 / \\ / g ，而不是 / \\ / g / 。

Your regular expression has a typo: it should be /\\/g, not /\\/g/.

，它工作正常。

Once you fix all of that, it works fine.

演示

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