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1: js operates json object
for(var item in json){ alert(item); //结果是 aa,bb, 类型是 string alert(typeof(item)); alert(eval("json."+item)); //结果是true,true类型是boolean eval(("json."+item+"=false;")); //改变json对象的值 }
2: Method to convert json object into String object
/** * json对象转字符串形式 */ function json2str(o) { var arr = []; var fmt = function(s) { if (typeof s == 'object' && s != null) return json2str(s); return /^(string|number)$/.test(typeof s) ? "'" + s + "'" : s; } for (var i in o) arr.push("'" + i + "':" + fmt(o[i])); return '{' + arr.join(',') + '}'; }
3: Convert string object to json object
function stringToJson(stringValue) { eval("var theJsonValue = "+stringValue); return theJsonValue; }
4: Method to convert json array into String object (requires the above method)
function JsonArrayToStringCfz(jsonArray) var JsonArrayString = "["; for(var i=0;i<jsonArray.length;i++){ JsonArrayString=JsonArrayString+JsonToStringCfz(jsonArray[i])+","; } JsonArrayString = JsonArrayString.substring(0,JsonArrayString.length-1)+"]"; return JsonArrayString; }
5: Use json.js json to string
<script src="json2.js"></script> <script> var date = {myArr : ["a" , "b" , "c" , "d"] , count : 4}; var str = JSON.stringify(date); alert(str); </script>
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