Add object to the beginning of array using spread operator
I'm a little late but
You can solve this problem modifying it like this with spreed:
change:
var result = [newObj, ...oldArray]for:
var result = [{...newObj}, ...oldArray]
You could use the unshift() function which does exactly that:
let oldArray = [{'value': '1', 'label': 'a'}, {'value': '2', 'label': 'b'}]let newObj = {'value': 'all', 'label': 'all'}oldArray.unshift(newObj)console.log(oldArray)Or if you don't want to modify the original array, you can do:
const result = oldArray.slice()result.unshift(newObj)console.log(result)
You can use unshift() to add items to the beginning of an array
var oldArray = [{'value': '1', 'label': 'a'}, {'value': '2', 'label': 'b'}]var newObj = {'value': 'all', 'label': 'all'}oldArray.unshift(newObj);console.log(oldArray);