js object转json

jQuery.extend( { /** * @see 将json字符串转换为对象 * @param json字符串 * @return 返回object,array,string等对象 */ evalJSON : function (strJson) { return eval( "(" + strJson + ")"); } }); jQuery.extend( { /** * @see 将javascript数据类型转换为json字符串 * @param 待转换对象,支持object,array,string,function,number,boolean,regexp * @return 返回json字符串 */ toJSON : function (object) { var type = typeof object; if ('object' == type) { if (Array == object.constructor) type = 'array'; else if (RegExp == object.constructor) type = 'regexp'; else type = 'object'; } switch(type) { case 'undefined': case 'unknown': return; break; case 'function': case 'boolean': case 'regexp': return object.toString(); break; case 'number': return isFinite(object) ? object.toString() : 'null'; break; case 'string': return '"' + object.replace(/(//|/")/g,"//$1").replace(//n|/r|/t/g, function(){ var a = arguments[0]; return (a == '/n') ? '//n': (a == '/r') ? '//r': (a == '/t') ? '//t': "" }) + '"'; break; case 'object': if (object === null) return 'null'; var results = []; for (var property in object) { var value = jQuery.toJSON(object[property]); if (value !== undefined) results.push(jQuery.toJSON(property) + ':' + value); } return '{' + results.join(',') + '}'; break; case 'array': var results = []; for(var i = 0; i < object.length; i++) { var value = jQuery.toJSON(object[i]); if (value !== undefined) results.push(value); } return '[' + results.join(',') + ']'; break; } } });