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Introduction to the method of converting a string into a JSON object by JS

Source: Internet
Author: User
Tags eval json tojson
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In JS, the JSON-formatted string is converted to a JSON object, and the key code

Example 1

The code is as follows Copy Code

JSON = eval (' (' +str+ ') ');


The method is as follows:

The code is as follows Copy Code

<! DOCTYPE HTML PUBLIC "-//W3C//DTD XHTML 1.0 transitional//en" "Http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd ">
<meta http-equiv= "Content-type" content= "text/html; Charset=utf-8 "/>
<title>json Application </title>
<script type= "Text/javascript" >
function Strtojson (str) {
JSON = eval (' (' +str+ ') ');
return JSON;
}
function Tojson (data) {
JSON = eval (data);
return JSON;
}

JSON data
str = ' {id:1,title: Hello, friend ', Addtime: ' 2010-05-03 '} ';
Strjson = Strtojson (str);
data = {id:2,title: "Hello, haha", addtime: "2010-05-04"};
Json = Tojson (data);

document.write (strjson.id+ "," +strjson.title+ "" +strjson.addtime+ "<br/>");
document.write (json.id+ "," +json.title+ "" +json.addtime+ "<br/>");
</script>
<body>
</body>

2,new function form, more bizarre Oh. As follows

The code is as follows Copy Code

function Strtojson (str) {
var json = (new Function ("return" + str)) ();
return JSON;
}

3, use the global JSON object as follows:

The code is as follows Copy Code

function Strtojson (str) {
return Json.parse (str);
}

The following two conversion methods are recommended for personal use Oh, this relatively secure method, especially json.parse, converts strings to objects.

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Related Keywords:
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