JavaScript Passion

I have a constructor function which registers an event handler: However, I'm not able to acces… Read more How To Access The Correct `this` Inside A Callback

Is there an official way to hook in to jQuery.remove() so that a function can be called before/afte… Read more Jquery Remove() Callback?

I, I know, there is a lot information about this on SO, but I didn't find the right answer for… Read more Nodejs Local Variable In Callback

Recently had a similar question, but still can't get it. I have to validate registration page b… Read more Nodejs - How To Break A Function?

prepOutput() is a simple function that takes an average and returns the callback output(), but I am… Read more Getting Undefined For This Callback Function

I have a block of code that I will be using several times within a then statement in mocha so I tur… Read more How Can I Pass Mochas Done Callback Function To Another Helper Function

I was referring this nodetuts tutorial on coordinating parallel calls in NodeJs. http://nodetuts.c… Read more Nodejs Asynchronous Programming - Coordinating Parallel Calls

To simplify my question i did some modifications to the code. I am now able to get the value from t… Read more Extracting Return Value From Nested Callback Function

I have been working with a roulette design, where i need a wheel, so i am using winwheel.js library… Read more How To Use Winwheel.js Callback In Angular2

using below flatten function as example, why cant I use return directly on the accumulator. Push() … Read more Why Can't Direcrlty Return A Value By Using .push() In Javascript?

Folks - I'm trying to learn how to write OO Javascript, I come from as3 OO background... issue … Read more Scope When Doing Oo Javascript Callbacks

I use JS generator to yield a value in a callback of setTimeout: function* sleep() { // Using yie… Read more Js: How To Use Generator And Yield In A Callback

whenever i try to run something like the following, firebug tells me that 'markers is undefined… Read more Javascript - Global Variable Not In Scope After Being Defined In Callback?

Here is an example of a question that I am slightly confused about. Function one calls function tw… Read more Understanding Javascript Callbacks And Formal Parameters

I am trying to figure out is there is any way to pass in an index argument to a promise's callb… Read more Passing Parameters To Promise's Callback In Angularjs

I'm an node.js and express.js noob. This question may seems silly but I'm really in confusi… Read more What Is "done" Callback Function In Passport Strategy Configure "use" Function

I have this scenario: I have some data (in a pandas dataframe) that I use to draw my plots When I … Read more How Can I Call A Javascript Function From Python Using Bokeh?

I was hopping around various websites but couldn't understand how callbacks make javascript asy… Read more Asynchronous Behavior And Callbacks In Javascript

I'm using the Google webfont loader, but I can't get the fontactive callback to work. The … Read more Google/typekit Webfont-loader Does Not Detect Non-ascii Fonts

The rewritten code should display any amount of pictures and the old code is static. But what the n… Read more Jquery .fadein() And .fadeout() Callbacks Work Not As Expected After Rewriting Code To Recursive Callbacks