Robor Systems Coding Challenge Q2

Cipher.js

const string = "abcdefghijklmnopqrstuvwxyz"

function cipher(str, k) {
    
    let first = []
    let second = []
    for (let i = k; i < str.length; i++) {
        second.push(str[i])
    }
    for (let i = 0; i < k; i++) {
        first.push(str[i])
    }
    first = first.join("")
    second = second.join('')
    return second + first
}

console.log(cipher(string, 3))