VanDalkvist

function _missExecutionIfAnotherIsProcessing(action) {
    return function () {
      if (action.busy) {
        logger.debug("Missing new execution. Another instance is processing now.");
        return Q.when(action.waiting);
      }

      action.busy = true;
      action.waiting = action.apply(undefined, Array.prototype.slice.call(arguments)).then(function (res) {
        action.busy = false;

VanDalkvist

Detect resizing

$(".box").on("webkitTransitionEnd transitionend oTransitionEnd", function (event) {
  if (event.originalEvent.propertyName == "width") {
    // bla-bla
  }
  if (event.originalEvent.propertyName == "height") {
    // bla-bla
 }

VanDalkvist

function encodeAndSerializeJson(obj) {
  if (typeof obj === 'string') {
    return encodeURIComponent(obj);
  } else if (Array.isArray(obj)) {
    for (var i = obj.length; i--;) {
      obj[i] = encodeAndSerializeJson(obj[i]);
    }
  } else {
    var keys = Object.keys(obj);
    for (var i = keys.length; i--;) {

VanDalkvist

/**
 * Performance reporting for Knockout binding handlers
 *
 * Usage: Include after all bindings are declared, view console for results.
 */
(function () {

   var report = [];
   var lastReport = 0;
   var debounceWait = 500;

VanDalkvist

AngularJS Directive Attribute Binding Explanation

When using directives, you often need to pass parameters to the directive. This can be done in several ways. The first 3 can be used whether scope is true or false. This is still a WIP, so validate for yourself.

1. Raw Attribute Strings

   <div my-directive="some string" another-param="another string"></div>

VanDalkvist

Provider	Singleton	Instantiable	Configurable
Constant	Yes	No	No
Value	Yes	No	No
Service	Yes	No	No
Factory	Yes	Yes	No
Decorator	Yes	No?	No
Provider	Yes	Yes	Yes

Constant

VanDalkvist

function startOnce(callback, delay) {
    var delayed = Q.delay(delay);
  
    var deferred = Q.defer();
    delayed.then(deferred.resolve);
  
    var promise = deferred.promise.then(function () {
        _handleDeferred(deferred, callback());
    }, function (res) {
        if (!res.cancelled) throw res;

VanDalkvist

var hash = crypto.createHash('md5'), 
    stream = fs.createReadStream('mybigfile.dat');

stream.on('data', function (data) {
    hash.update(data, 'utf8')
})

stream.on('end', function () {
    hash.digest('hex'); // 34f7a3113803f8ed3b8fd7ce5656ebec
})

VanDalkvist

var start = new Date();
var hrstart = process.hrtime();

setTimeout(function (argument) {
    // execution time simulated with setTimeout function
    var end = new Date() - start,
        hrend = process.hrtime(hrstart);

    console.info("Execution time: %dms", end);
    console.info("Execution time (hr): %ds %dms", hrend[0], hrend[1]/1000000);

VanDalkvist

Add-Type -AssemblyName System.IO.Compression.FileSystem
function Unzip
{
    param(
        [string]$archive,
        [string]$out
    )

    [System.IO.Compression.ZipFile]::ExtractToDirectory($archive, $out)
}