xperiments

// https://github.com/angular/angular/issues/14033

@Directive({
  selector: '[oneTime]',
})
export class OneTimeDirective {
  constructor(template: TemplateRef<any>, container: ViewContainerRef, zone: NgZone) {
    zone.runOutsideAngular(() => {
      const view = container.createEmbeddedView(template);
      setTimeout(() => view.detach());

xperiments

// http://www.thecodeship.com/web-development/alternative-to-javascript-evil-setinterval/
function interval(func, wait, times){
    var interv = function(w, t){
        return function(){
            if(typeof t === "undefined" || t-- > 0){
                setTimeout(interv, w);
                try{
                    func.call(null);
                }
                catch(e){

xperiments

// Converts an ArrayBuffer directly to base64, without any intermediate 'convert to string then
// use window.btoa' step. According to my tests, this appears to be a faster approach:
// http://jsperf.com/encoding-xhr-image-data/5

function base64ArrayBuffer(arrayBuffer) {
  var base64    = ''
  var encodings = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'

  var bytes         = new Uint8Array(arrayBuffer)
  var byteLength    = bytes.byteLength

xperiments

// => http://stackoverflow.com/questions/17392349/how-can-i-check-if-element-is-an-instanceof-u

function OfType<T, U>(list: T[], arg: Function) : U[]
{
    var result: U[] = [];

    list.forEach(e => {
        // extract the name of the class
        // used to match primitive types
        var typeName = /function\s*([^(]*)/i.exec(arg+"")[1].toLocaleLowerCase();

xperiments

//http://stackoverflow.com/questions/15877362/declare-and-initialize-a-dictionary-in-typescript

interface IDictionary {
    add(key: string, value: any): void;
    remove(key: string): void;
    containsKey(key: string): bool;
    keys(): string[];
    values(): any[];
}

xperiments

var isOpera = !!window.opera || navigator.userAgent.indexOf(' OPR/') >= 0;
    // Opera 8.0+ (UA detection to detect Blink/v8-powered Opera)
var isFirefox = typeof InstallTrigger !== 'undefined';   // Firefox 1.0+
var isSafari = Object.prototype.toString.call(window.HTMLElement).indexOf('Constructor') > 0;
    // At least Safari 3+: "[object HTMLElementConstructor]"
var isChrome = !!window.chrome && !isOpera;              // Chrome 1+
var isIE = /*@cc_on!@*/false;                            // At least IE6