JavaScript Guy

I have started reading this book. Chapter 2 says that there are different ways to write an IIFE: !f… Read more What Are The Different Ways Of Writing An Iife? What Are Their Use Cases?

I am working on an awesome project, normally i use AS3 but now I am using Javascript. I have the fo… Read more Unable To Get Object Out Of Function

Why do JavaScript functions return undefined by default instead of null? Is this a totally arbitrar… Read more Why Do Functions Return `undefined` Instead Of `null` By Default?

I have this function: function countLitreKgSums(cProductIds){ var cLitreKgSums = new Array(); v… Read more Why Do I Get An Error Message That .replace Is Not A Function?

I found this code from another post and I'm trying to understand a part of this solution. The … Read more What Is The Output Of This Condition In The Prime Function?

I have following problem: // Reverse Array Write a function that accepts an array and reverses tha… Read more Js: Reverse An Array But Reverse The Original Array Only --> Error: Running With No Output

While reading Learning JavaScript 2nd edition, I see a block of code in Chapter 13: Creating Custom… Read more Javascript New Function Confusion

We know that the javascript logical operator || produces the value of its first operand if the firs… Read more Assigning A Default Value Through The Logical Operator Or