JS Code Challenges

problem-1.js

function stringy(num) {
  var result = [1];

  if (num == 1) { return result; };

  for(i = 0; i < num; i++) {
    var lastElement = result[result.length - 1];

    lastElement == 0 ? result.push(1) : result.push(0);
  }

  return result.join("").substring(0, num);
};

console.log(stringy(4));

problem-2.js

function transmix(num) {
  return num.toString().split("").reverse().map(function(string) {
    return parseInt(string);
  });
};

console.log(transmix(90210));

problem-3.js

function fibonacci(max) {
  fibs = [0, 1]

  for(var i = 0; i < max - 2; i++) {
    last = fibs[fibs.length - 1]
    secToLast = fibs[fibs.length - 2]
    next = last + secToLast

    fibs.push(next)
  }

  return fibs
}

console.log(fibonacci(3));