<html><head></head><body><script type="text/javascript">
function obj2str(o) {
var r = [];
if (typeof o == "string")
return "\""
+ o.replace(/([\'\"\\])/g, "\\$1").replace(/(\n)/g,"\\n").replace(/(\r)/g, "\\r").replace(/(\t)/g,"\\t") + "\"";
if (typeof o == "object") {
if (!o.sort) {
for ( var i in o)
r.push(i + ":" + obj2str(o[i]));
if (!!document.all&& !/^\n?function\s*toString\(\)\s*\{\n?\s*\[native code\]\n?\s*\}\n?\s*$/
.test(o.toString)) {
r.push("toString:" + o.toString.toString());
}
r = "{" + r.join() + "}"
} else {
for ( var i = 0; i < o.length; i++)
r.push(obj2str(o[i]))
r = "[" + r.join() + "]"
}
return r;
}
return o.toString();
}
var info=new Object();
info.name="haoning";
info.age="18";
var cardinfo= new Object();
cardinfo.num=123123131;
cardinfo.type="user card";
info.card=cardinfo
alert(obj2str(info));</script></body></html>把javascript对象转成json
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