Author Archive

                                           

Five rules to understand `this` in JavaScript.

One of the most confusing concepts in javascript is the usage of the keyword this. In most classical OOP like Java programming languages this is simply an instance of the class you are working on. However, in JavaScript, this could be many things. Here are simple five rules that always help me know what this […]

                                           

Inheritance and Prototypes in JavaScript

Things I didn’t realize existed in JavaScript In java every class inherits from a class called Object. This Object class has methods like toString() and equals() that other classes can use by default. That means, without defining such methods in themselves. Hence an object of Employee.java class can invoke the toString() function. And this is […]

                     

Working with the current index in Angular ngFor

Angular ngFor directive helps us loop over an item and interpolate it in our template file. Most of the time we might also be interested to get the current index in Angular ngFor. Furthermore, we might be interested in whether the items are located on the even or odd index. Angular provides an easy way […]

                     

Modules and Namespaces in JavaScript

modules and namespaces in javascript

For most of us, modules and namespaces in JavaScript were kinds of tricky. We import a bundle and it does the magic. How and why is abstracted away. And before modules, ideas of IIFE, closure, etc made this arena unreachable for junior JavaScript developers. Besides the easiness it brings, modularity has a number of advantages. […]

                     

The case of IIFEs in ES6

Do we need IIFEs in ES6? To answer this question let’s talk about IIFEs first. What the heck is IIFE? As a programmer who learned things by trial and error and who avoided scary topics at all costs, I can tell you honestly that I have missed IIFEs for the most part of my career. […]

                     

How to move or shift date by n number of days

shift date by n number of days

Here is a quick way to shift a day by n number of days, by adding those days, and adjusting the date. In the process, we will pay attention to moving the days into another month or year if we have to. Of course, this depends on the few date manipulation methods we saw last […]

                     

Working with Dates and Time in JavaScript

Working with dates and time is very scary, I admit. Most of the time I retreat and find a library that can handle the details for me and avoid this topic at all costs. Besides libraries, JavaScript has a built-in class called Date which represents a point in time. And, if we like, we can […]

                                           

Constructor Property Promotion in PHP8

Constructor property promotion in PHP8 code example

Constructor property promotion in PHP8 is one of the new features which make our code less verbose and less error-prone. Similar to the match expressions which I wrote about last week. Before we see what constructor property promotions in PHP8 look like, let’s take a look at a typical class declaration. As you can see, […]