I have an array like this:
var oldArray = [{'value': '1', 'label': 'a'}, {'value': '2', 'label': 'b'}]
what I want is using spread operator add a new object at the beginning of that array:
BTW this works:
var oldArray = [{'value': '1', 'label': 'a'}, {'value': '2', 'label': 'b'}]
var newObj = {'value': 'all', 'label': 'all'}
var result = [newObj, ...oldArray]
But generates a key "newObj" like this:
var oldArray = [newObj : {'value': 'all', 'label': 'all'}, 0: {'value': '1', 'label': 'a'}, 1:{'value': '2', 'label': 'b'}]
And I want the key to be auto generated like if I do this:
var result = [{'value': 'all', 'label': 'all'}, ...oldArray]
And imagine the result is this:
var oldArray = [newObj : {0: 'all', 'label': 'all'}, 1: {'value': '1', 'label': 'a'}, 2:{'value': '2', 'label': 'b'}]
but that gives me an error.
Right now I'm using unshift and it works, I wonder if there's a way to do the same with spread operator.
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