CODE EXAMPLE FOR JAVASCRIPT

copying arrays in javascript without reference | copying arrays using spread operator

let arr1 = [1,2,3,4,5];
let arr2 = [...arr1];
arr2[0] = -2;
console.log(arr2);// outputs : [-2,2,3,4,5]
console.log(arr1);// outputs : [1,2,3,4,5]