我如何使用JavaScript来解析Ruby JSON字符串

I'm trying to get the JSON object from a JSON outputted string from a Rails app. Currently in JavaScript I'm doing:

我正在尝试从Rails应用程序的JSON输出字符串中获取JSON对象。目前在JavaScript我正在做:

data = "<%= @chromosomes.html_safe %>";

However, since there are quotes at the beginning and end of the JSON object, it is not being rendered as a JSON object. Instead it is doing something like

但是,由于JSON对象的开头和结尾都有引号,因此它不会呈现为JSON对象。相反,它正在做类似的事情

 data = "[{"name":"YHet","organism_id":"4ea9b90e859723d3f7000037"}]"

Is there a way that I can remove the beginning and end quotes so that the object is treated as an array instead of a string?

有没有办法可以删除开头和结尾的引号,以便将对象视为数组而不是字符串?

5 个解决方案

#1

Why don't you do:

你为什么不这样做:

data = <%= @chromosomes.html_safe %>;

Sidenote:

I hope you do something like:

我希望你做的事情如下:

@chromosomes = [{ name: "YHet", organism_id: "foo" }].to_json

#2

If you are using jQuery you can do the following

如果您使用的是jQuery,则可以执行以下操作

var data = jQuery.parseJSON('[{"name":"YHet","organism_id":"4ea9b90e859723d3f7000037"}]');

#3

Use eval:

var dataObject = eval('(' + dataString + ')');

var dataObject = eval('('+ dataString +')');

#4

Use JSON object that is included in most of browsers or if you are using jQuery use $.jsonParse method that try to use JSON object if defined otherwise parse using eval or some safer way.

使用大多数浏览器中包含的JSON对象,或者如果使用jQuery,则使用$ .jsonParse方法尝试使用JSON对象,否则使用eval或更安全的方式解析。

#5

On controller

@my_var = MyObj.find_by_id(4).to_json

On page in haml way.

在页面上以haml方式。

var my_json = $.parseJSON("#{j @my_var}"); //used JQuery to parser JSON string

#1