JSFiddle - React, Tailwind, and code Playground

by toby3105

JavaScript

function mutation(arr) {
    var arr1 = arr[0].split('');
    var arr2 = arr[1].split('');
    var count = 0;
    for (var i =0; i < arr2.length; i++) {
        if(arr1.indexOf(arr2[i]) == -1 ) {
            return false;
        }
    }
    return true;
}

console.log(mutation(['alien', 'line']));