js生成JSON

var str = {};
var object = JSON.parse(str);
object.newKey = 'newvalue';
object.anotherKey = 'anotherValue';
document.write(JSON.stringify(object);
//输出结果:
{"newKey":"newvalue","anotherKey":"anotherValue"}
//值也能是一个数组
var shuz = [];
var jstr1 = '{"a":"b"}';
var jstr2 = '{"c":"d"}';
shuz.push(JSON.parse(jstr1));
shuz.push(JSON.parse(jstr2));
object.thisKey = shuz;
//此时json是：
{"newKey":"newvalue","anotherKey":"anotherValue",thisKey:[{"a":"b"},{"c":"d"}]}

javascript里格式化生成json。初学，之前我是这样写

var datatext={
	"pTYPE":TYPE.value,
	"pKEY":KEY.value,
	"pJYSJ":"1",
	"pJYJE":"1",
	"pZKJE":"1",
	"pSKLIST":[{"SKFS": "2","SKJE":"1"}]
}

如果元素值是未知元素个数的JSON数组，我拼接字符串时需要判断逗号，还得正则表达式替换自动生成的"\",和引号，甚是繁琐。以上方法写易于维护，易于理解。