Answers for "deletion of an array"

remove an element from an array javascript

let value = 3

let arr = [1, 2, 3, 4, 5, 3]

arr = arr.filter(item => item !== value)

console.log(arr)
// [ 1, 2, 4, 5 ]

Delete item from array

const users = ['item1', 'item2', 'item3'];
// delete 'item2'
delete users['item2']
console.log(users); // ['item1', 'item3']
// another way
console.log(users.splice(1, 1)); // ['item1', 'item3']