alanthai

// assume positive integers as parameters
function getDigit(n, d) {
  return parseInt( n / Math.pow(10, d - 1), 10 ) % 10;
}

function nth(n) {
  var d1 = getDigit(n, 1);
  var d2 = getDigit(n, 2);
  n = "" + n;

alanthai

// midnight today
var today = new Date(new Date().setHours(0,0,0,0));

// midnight tomorrow
var tomorrow = new Date(new Date().setHours(24,0,0,0));

// date format: yyyy-mm-dd HH:MM:SS
function pad(n, width, z) {
	z = z || '0';
	n = n + '';

alanthai

function toHex(n: number) {
  return ('0' + n.toString(16)).slice(-2);
}

// ES6

function hexToRGB(code) {
  const [r, g, b] = code.replace('#', '')
    .match(/../g).map((hex) => parseInt(hex, 16));
  return {r, g, b};