blocks|key|1336768|text|所有现代浏览器都支持原生JSON编码/解码(+8%2B+8%2B、Firefox+3.1%2B、Safari+4%2B和Chrome+3%2B)。基本上，JSON.parse(str)将解析str中的JSON字符串并返回一个对象，而JSON.stringify(obj)将返回对象obj的JSON表示。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1336769|有关MDN+article的更多详细信息。|1336770|entityMap|0|LINK|mutability|MUTABLE|url|https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Using_native_JSON^0|1V|F|2D|3|2Y|J|3M|3|0|2|B|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@$9|Q|A|R|B|C]|$9|S|A|T|B|C]|$9|U|A|V|B|C]|$9|W|A|X|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|Y|8|@]|D|@$9|Z|A|10|1|11]]|E|$]]|$1|H|3|-4|5|6|7|12|8|@]|D|@]|E|$]]]|I|$J|$5|K|L|M|E|$N|O]]]]

All modern browsers support native JSON encoding/decoding (Internet Explorer 8+, Firefox 3.1+, Safari 4+, and Chrome 3+). Basically, <code>JSON.parse(str)</code> will parse the JSON string in <code>str</code> and return an object, and <code>JSON.stringify(obj)</code> will return the JSON representation of the object <code>obj</code>.

More details on the <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Using_native_JSON" rel="noreferrer">MDN article</a>.

blocks|key|1336822|text|[扩展musicfreak注释]|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1336823|如果您使用的是jQuery，请使用parseJSON|1336824|var+obj+=+jQuery.parseJSON(data)|code-block|syntax|javascript|1336825|它在内部检查浏览器是否支持.JSON.parse，并(如果可用)调用本机window.JSON.parse。|1336826|如果不是，则进行自身解析。|1336827|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/users/104184/musicfreak|1|http://api.jquery.com/jQuery.parseJSON/^0|3|A|0|0|H|9|1|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Y|8|@]|9|@$A|Z|B|10|1|11]]|C|$]]|$1|D|3|E|5|6|7|12|8|@]|9|@$A|13|B|14|1|15]]|C|$]]|$1|F|3|G|5|H|7|16|8|@]|9|@]|C|$I|J]]|$1|K|3|L|5|6|7|17|8|@]|9|@]|C|$]]|$1|M|3|N|5|6|7|18|8|@]|9|@]|C|$]]|$1|O|3|-4|5|6|7|19|8|@]|9|@]|C|$]]]|P|$Q|$5|R|S|T|C|$U|V]]|W|$5|R|S|T|C|$U|X]]]]

[extending <a href="https://stackoverflow.com/users/104184/musicfreak">musicfreak</a> comment]

If you are using jQuery, use <a href="http://api.jquery.com/jQuery.parseJSON/" rel="nofollow noreferrer">parseJSON</a>

<pre><code>var obj = jQuery.parseJSON(data)
</code></pre>

Internally it checks if browser supports .JSON.parse, and (if available) calls native window.JSON.parse.

If not, does parse itself.

blocks|key|1552465|text|jQuery-1.7.1.js+-+555行...|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1552466|parseJSON:+function(+data+)+{
++++if+(+typeof+data+!==+"string"+%7C%7C+!data+)+{
++++++++return+null;
++++}

++++//+Make+sure+leading/trailing+whitespace+is+removed+(IE+can't+handle+it)
++++data+=+jQuery.trim(+data+);

++++//+Attempt+to+parse+using+the+native+JSON+parser+first
++++if+(+window.JSON+&&+window.JSON.parse+)+{
++++++++return+window.JSON.parse(+data+);
++++}

++++//+Make+sure+the+incoming+data+is+actual+JSON
++++//+Logic+borrowed+from+http://json.org/json2.js
++++if+(+rvalidchars.test(+data.replace(+rvalidescape,+"@"+)
++++++++.replace(+rvalidtokens,+"]"+)
++++++++.replace(+rvalidbraces,+""))+)+{

++++++++return+(+new+Function(+"return+"+%2B+data+)+)();

++++}
++++jQuery.error(+"Invalid+JSON:+"+%2B+data+);
}





rvalidchars+=+/%5E[\],:{}\s]*$/,

rvalidescape+=+/\\(?:["\\\/bfnrt]%7Cu[0-9a-fA-F]{4})/g,

rvalidtokens+=+/"[%5E"\\\n\r]*"%7Ctrue%7Cfalse%7Cnull%7C-?\d%2B(?:\.\d*)?(?:[eE][%2B\-]?\d%2B)?/g,

rvalidbraces+=+/(?:%5E%7C:%7C,)(?:\s*\[)%2B/g,|code-block|syntax|javascript|1552467|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

jQuery-1.7.1.js - 555 line...

<pre><code>parseJSON: function( data ) {
 if ( typeof data !== "string" || !data ) {
 return null;
 }

 // Make sure leading/trailing whitespace is removed (IE can't handle it)
 data = jQuery.trim( data );

 // Attempt to parse using the native JSON parser first
 if ( window.JSON &amp;&amp; window.JSON.parse ) {
 return window.JSON.parse( data );
 }

 // Make sure the incoming data is actual JSON
 // Logic borrowed from http://json.org/json2.js
 if ( rvalidchars.test( data.replace( rvalidescape, "@" )
 .replace( rvalidtokens, "]" )
 .replace( rvalidbraces, "")) ) {

 return ( new Function( "return " + data ) )();

 }
 jQuery.error( "Invalid JSON: " + data );
}





rvalidchars = /^[\],:{}\s]*$/,

rvalidescape = /\\(?:["\\\/bfnrt]|u[0-9a-fA-F]{4})/g,

rvalidtokens = /"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g,

rvalidbraces = /(?:^|:|,)(?:\s*\[)+/g,
</code></pre>

blocks|key|1336913|text|为了任何遇到这个线程的人的好处--一个最新的、明确的支持JSON+object+look+here.的浏览器列表。一个简短的通用答案--几乎所有在2013%2B中真正重要的浏览器。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1336914|entityMap|0|LINK|mutability|MUTABLE|url|http://caniuse.com/json^0|14|A|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

For the benefit of anyone who runs into this thread - for an up-to-date, definitive list of browsers that support the JSON object <a href="http://caniuse.com/json" rel="noreferrer">look here.</a>. A brief generic answer - pretty much all browsers that really matter in the year 2013+.

I have seen references to some browsers natively supporting JSON parsing/serialization of objects safely and efficiently via the <code>window.JSON</code> Object, but details are hard to come by. Can anyone point in the right direction? What are the methods this Object exposes? What browsers is it supported under?

Browser-native JSON support (window.JSON)

jQuery

JSON

我已经看到一些浏览器通过window.JSON对象安全高效地支持对象的JSON解析/序列化，但很难获得详细信息。有人能指出正确的方向吗？这个对象公开的方法是什么？在什么浏览器下支持它？

问浏览器原生JSON支持(window.JSON)
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