DronRathore

var globalTime = new Date().getTime();
var b = function(callback){
        var date = new Date().getTime();
        for (var i=0;i<10000;i++)
                callback();
        console.log("Completed a function test in", new Date().getTime()-date);
}
b(function(){
	var date = new Date().getTime();
        //console.log("Started A at:", date-globalTime);

DronRathore

var classA = function(options){
        if (this instanceof classA){
                this.options = options;
                return this
        } else {
                return new classA(options)
        }
}

classA.prototype.someAsnyc = function(callback, flag){

DronRathore

var time = Date.now();
setTimeout(function(){console.log("I was fired after: ", Date.now()-time, "ms")}, 1);
/*
        Output = I was fired after: 1 ms
*/

DronRathore

/*
        Law: clearInterval = clearTimeout
*/
var a = setTimeout(function(){console.log(1)}, 100);
clearInterval(a);
var b = setInterval(function(){console.log(1)}, 100);
clearTimeout(b);
/*
        Nothing will be logged on console!
        We cleared the timers!

DronRathore

/*
        Sample from MDN
*/
var start = null;
var element = document.getElementById("SomeElementYouWantToAnimate");

function step(timestamp) {
  if (!start) start = timestamp;
  var progress = timestamp - start;
  element.style.left = Math.min(progress/10, 200) + "px";

DronRathore

/*
  Adding values in array at init using variables is faster
  then processing individual entity
*/
function A(options){
   var a = [ “something” + options.A + “more”,  “second elem” + options.B + “Yo!”]
   return A;
}
function B(options){
   var a = [];

DronRathore

/*
  Generate unique IDs for Objects
*/
(
  function(ref){
    ref.__counting_tick_var = 0;
    Object.prototype.id = function(){
      return (
          this.__counting_tick_var ?
          this.__counting_tick_var :

DronRathore

#!/bin/bash
# Browsing directories on mac creates .DS_STORE and further
# it create similar files for any file you open
# it is annoying to see such files in a github repo folder and often
# we end up pushing them in our codebase
# so here is a one liner solution to remove .DS_STORE and other ._files from git
# run junk for non git repo, or cg for git repo, you can add this in your .bash_profile too.


# Add the below lines in your .bash_profile, run source ~/.bash_profile and done

DronRathore

package main
import "os"
import "text/tabwriter"
import "regexp"
import "fmt"

func main(){
  // silent the groups to eliminate redundant data in match
  var r = compileRegex("/:name/:service/:id(?:[0-9]{0,3})")
  var regex = r.FindStringSubmatch("/api/buy/123")

DronRathore

// Author: Dron Rathore <dron(.)rathore[(@)]G-Mail>
// A modified C++ implementation for Binary Search Tree
// Every node keeps a parent node ref to help the deletion
// in Θ(log(n)) complexity.

// This is no rocket science, same can be acheived with
// double pointers where you perform a look ahead search in
// the tree in case of deletion so you have parent of the
// Right Subtree's largest node which comes handy.