To check the key name like "item[ ]" exist in an object - AngularJs

Question

I have an object named as "obj" and it has two keys named as "goal" and "item[]", ie.

var obj = {goal:"abc",item[]:"def"};

And these keys and values are created dynamically.

Problem -

I want to check if these keys exist or not. If I check

if(obj.goal != undefined){
   //Do something
}

then it gives desired output. but when I do

if(obj.item[] != undefined){
  //Do something
}

then it throw error(Syntax error). Please advice how to check with the second case. Thanks in advance.

If you're just trying to check if a "key exists" then you can use `in`. e.g. `if('item[]' in obj) {}` — ryeballar, Feb 07 '16 at 18:08

score 1 · Accepted Answer · answered Feb 07 '16 at 18:05

1

Please use this with bracket notation:

if (obj['item[]'] !== undefined) {

answered Feb 07 '16 at 18:05

Nina Scholz

1 Answers1