function removeEmptyField(obj) {
var newObj =
{};
if(
typeof obj == "string"
){
obj =
JSON.parse(obj);
}
if(obj
instanceof Array){
newObj =
[];
}
if(obj
instanceof Object){
for(
var attr
in obj){
if(obj.hasOwnProperty(attr) && obj[attr] !== "" && obj[attr] !==
null && obj[attr] !==
undefined){
if(obj[attr]
instanceof Object){
newObj[attr] =
removeEmptyField(obj[attr]);
}else if(
typeof obj[attr] == "string" && ((obj[attr].indexOf("{") > -1 && obj[attr].indexOf("}") > -1) || (obj[attr].indexOf("[") > -1 && obj[attr].indexOf("]") > -1
))){
try{
var attrObj =
JSON.parse(obj[attr]);
if(attrObj
instanceof Object){
newObj[attr] =
removeEmptyField(attrObj);
}
}catch (e){
newObj[attr] =
obj[attr];
}
}else{
newObj[attr] =
obj[attr];
}
}
}
}
return newObj;
}
对象转字符串去除无效字段
function stringifyNoEmptyField(obj){
var newObj =
removeEmptyField(obj);
for(
var attr
in newObj){
if(newObj.hasOwnProperty(attr) && newObj[attr]
instanceof Array){
newObj[attr] =
JSON.stringify(newObj[attr]);
}
}
return JSON.stringify(newObj);
}
转载于:https://www.cnblogs.com/lweiruil/p/5500260.html
相关资源：数据结构—成绩单生成器
