How to check Object is Empty Or not

[Sironi]

Hi All,

Can you please suggest me how to check Object is empty or not,
If JSON is empty then complier should not go till " return JSON.stringify(arr);" 

if JSON is not empty then complier  should touch return JSON.stringify(arr); line in Code.

issue: script include returning error message like "Empty JSON string", If JSON is empty then 

Script include :

{

var arr=[];
for(var i=0;i<list.length;i++)

obj={

name: list[i].name,

id:list[i].id

},

arr.push(obj);

}

return JSON.stringify(arr);

},

to control this I tried below method to check JSON is empty or not ? but not working

1. Object.Keys(JSON.stringify(arr)).length===0

2. if(JSON.stringify(arr)==='{}')

Please suggest me , how to fix this

[Sandeep Rajput]

@Sironi Try updating the script as follows.

var arr = [];
    for (var i = 0; i < list.length; i++) {
        var obj = {

                name: list[i].name,

                id: list[i].id

            };

            arr.push(obj);
    }
	if(arr.length>0){
		return JSON.stringify(arr);
	}
	return '';    //Returns empty string if no elements in array

It returns string array only if it has some elements else it returns an empty string. 

[Sironi]

Hi,

Thanks for your reply,

here  list should be some variable/array type object right ?

list

so  List what it will represents ? are we taking any Default predefined length ? 

[Community Alums]

Hi @Sironi ,

Please try below script 

var arr = [];
for (var i = 0; i < list.length; i++){
    var obj = {
        name: list[i].name,
        id: list[i].id
    };
    arr.push(obj);
}
if(arr.length <= 0){
	gs.log("Array Length is less than zero");
}else{
	gs.log("Array Length is greater than zero");
}
gs.log(JSON.stringify(arr));

Please mark my answer correct and helpful if this works for you

Thanks and Regards 

Sarthak