SeeThruHead

console.log(
  Array.apply(null, {length: 100}).map(function(val, index) {
    return (++index%3?'':'Fizz')+(index%5?'':'Buzz')||index;
  }).join('\n')
);

console.log(
  Array.apply(null, {length: 100}).map(function(val, index) {
    index++;
    if (index % 15 == 0){return "FizzBuzz";}

SeeThruHead

// Init a source array contains numbers 0-35
var source = Array.apply(null, {length: 36}).map(Number.call, Number);

// Init the result array as undefined using the arguments pseudo array.
var result = Array.apply(null, {length: 100});

// The magic
result = result.map(function(val, index) {
  return source[index % source.length];
});

SeeThruHead

function checkSum(groupOfInputs, maxValue) {
    groupOfInputs = $(groupOfInputs);
    groupOfInputs.on('change keyup paste', function() {
        $this = $(this);
        var values = groupOfInputs.map(function() {return $(this).val();}).get();
        var sum = values.reduce(function(one, two) {
            return Number(one) + Number(two);
        });
        if (sum > maxValue) {
            alert('Too big!');