JavaScript Controls

The difference between these two keywords in terms of scoping has already been thoroughly discussed… Read more Is There A Performance Difference Between 'let' And 'var' In Javascript

one question I always ask myself is how is it possible that javascript has still a reference in a c… Read more Variable Scope In Ajax Calls

I'm using Firebase to access to same data, but i can't use the data out of the function use… Read more Variable No Accessible After A Firebase Call

This code implements a 60 cell spreadsheet, 6x10 rows,columns. At the end of each row are two label… Read more Update Data In Matrix Of Cells

So I encountered a problem. I have this object called myTree. And that object has properties. One o… Read more Accessing Variable Inside Object Property

I'm trying to set the variables lat and lng to the coordinates returned by the geocoder. I thin… Read more React Native Setting/accessing A Variable Inside A Function

I am working with AngularJS, CSS and HTML. Here's what I'm trying to do: A button gets disa… Read more Change Button Text Dynamically In Angularjs

I have a class that takes some coordinate and duration data. I want to use it to animate an svg. In… Read more How To Use Requestanimationframe Inside A Class Object

Forgive me if this is an amateur question, I'm new to using APIs. I've been working with Fi… Read more Firebase - Variables Out Of Scope

I know this must be really basic stuff but I don’t understand how the scope is working. I want the … Read more Why Is The Variable `closed` Being Logged As `false`, If I Define It Globally As `0`?

I understand that functions called without the 'new' keyword spit out all their properties … Read more Functions In Global Context

I'm having a difficult time passing the variable postData which is a serialized jQuery array ob… Read more Javascript/jquery Variable Scope Issue With Nested .ajax() Calls

The var keyword in javascript causes a variable to be stored in the local scope. Without var varia… Read more Javascript Scope Of Function Declarations

I want to loop through an array to perform $http.jsonp requests in angular, however each request wi… Read more Angularjs Foreach Loop Through Http Requests Dependent On Previous Request

I've a crazy problem. I'm instantiating an object from a class. Then I want to pass a funct… Read more Instantiating A Class And Then Pass It To Setinterval

This is a named function expression with the name test. Inside, I assign 123 to a variable, also na… Read more Why Can’t I Assign Values To A Variable Inside A Named Function Expression With The Same Name?

I'm working on a project that has many iframes that are opened and closed in a parent window. I… Read more Inject Javascript Function Into Parent Window From Iframe

How can you pass parameters into the keydown method from jquery because whenever I use a variable d… Read more Passing Parameters To Keydown

I've a variable scope problem and I don't understand why this occurs and how to get rid of … Read more Binding Listeners Inside Of A For Loop : Variable Scope Miscomprehension

I'm using TopUp to make a simple slideshow. Unfortunately they don't expose the image index… Read more Access Local Variable From Outside The Function