根据路径对一个json对象设置值 忽略异常

gistfile1.js

function setValueByPath(obj, path, value){
	var temp, k, re = obj;
	if(!obj || (typeof obj!="object" && typeof obj!="function"))
		return obj;
	(path+"").replace(/([^.:]+)([.:])?/g, function(m, n, sign){
		temp = obj;
		k = n;
		obj = obj[n] = (obj!=void 0 && (typeof obj=="object" || typeof obj=="function") && n in obj) ? obj[n] : sign ==":" ?  [] : {};
	});
	if(k && temp){
		temp[k] = value;
	}
	return re;
}