andregoncalves

<style>
  .aspect-ratio {
    padding-top: calc(1 / (16 / 9) * 100%);
    position : relative;
  }
  
  .aspect-wrapper {
    position: absolute;
    top:0;
    left:0;

andregoncalves

console.log('%c Oh my heavens! ', 'background: #222; color: #bada55');

andregoncalves

// Throttling
// ES6 code
function throttled(delay, fn) {
  let lastCall = 0;
  return function (...args) {
    const now = (new Date).getTime();
    if (now - lastCall < delay) {
      return;
    }
    lastCall = now;

andregoncalves

(function(){
  const t = window.performance && performance.timing;
  if (!t) {
    return;
  }
  const loadTime = (t.loadEventEnd - t.navigationStart) / 1000;
  alert(`This page loaded in ${loadTime} seconds`);
}())

andregoncalves

.invalid-feedback:before {
  content: '⚠️'
}

andregoncalves

function logClass(target: any) {
 
  // save a reference to the original constructor
  var original = target;
 
  // a utility function to generate instances of a class
  function construct(constructor, args) {
    var c : any = function () {
      return constructor.apply(this, args);
    }