I've been told not to use for...in with arrays in JavaScript. Why not?...
How can I loop through all the entries in an array using JavaScript?  I thought it was something like this:  forEach(instance in theArray)   Where theArray is my array, but this seems to be incorrect....
I have an object which has inner objects and properties defined like this:  var obj = {obj1 : { "prop1" : "nothing", "prop2" : "prop"},         obj2 : {"prop1" : "nothing", "prop2" : "prop...
I have a dictionary that has the format of   dictionary = {0: {object}, 1:{object}, 2:{object}}   How can I iterate through this dictionary by doing something like  for((key,value) in dictionary){   //Do stuff where key would be 0 and value would b...
Say you have a javascript object like this:  var data = { foo: 'bar', baz: 'quux' };   You can access the properties by the property name:  var foo = data.foo; var baz = data["baz"];   But is it possible to get these values...
How can I loop through all the entries in an array using JavaScript?  I thought it was something like this:  forEach(instance in theArray)   Where theArray is my array, but this seems to be incorrect....
Given an array having .length 100 containing elements having values 0 to 99 at the respective indexes, where the requirement is to find element of of array equal to n : 51.   Why is using a loop to iterate from start of array to end faster than itera...
Given the following algorithm:    console.log(JSON.stringify(create(0), null, 2))  function create(i) {   if (i == 5) return   return new Klass(i, create(i + 1), create(i + 1)) }  function Klass(i, l, r) {   this.i = i   this.l = l   this.r = r }...
Have been facing issue while iterating through a list and printing elements in React.  The React Code is:  import React from 'react'; import ReactDOM from 'react-dom';  class NewComponent extends React.Component {     constructor(prop...
I am having a problem with my code, I have not been able to figure it out for the past 2 days.   /**  *   *///function 7 /**  * returns the number of times that pattern occurs in string   */     function score(string,pattern) {         var v = string...

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