javascript spread operator for object is not working? Is this expected behavior?

Asked By: Anonymous

Spread operator(...) for an object is not working as you can see in the below code. Is this expected behavior?
try it in jsbin

//var test ={start:'stating',end: 'ending'}; //its not working
var test=['start-value','end-value']; //its working
function display(start,end){
  console.log(start,end);
}
display(...test)

The reason behind asking this question is, I saw the use of spread operator using an object in the below line of code but it’s not working for me.

https://github.com/josemarluedke/ember-cli-daterangepicker/blob/master/addon/components/date-range-picker.js#L203

Am I missing any configuration to make it work ?.

Solution

Answered By: Anonymous

From the docs:

Only for iterables

Note that the spread operator can be applied only to iterable objects:

var obj = {'key1': 'value1'};
var array = [...obj]; // TypeError: obj is not iterable

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Spread_operator