Basic Algorithm Scripting - Mutations

function mutation(arr) {
    let first = arr[0].toLowerCase();
    let second = arr[1].toLowerCase();
    for(let i = 0; i < second.length; i++){
        if(first.includes(second[i]) === false) {
            return false;
    return true;

mutation(["hello", "hey"]);

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Challenge: Basic Algorithm Scripting - Mutations

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