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Immediately Invoked Function Expressions

In this article, we are going to look at another function variation known as an Immediately Invoked Function Expression. Friends like us just call it IIFE (pronounced "iffy"). At first, what it does might seem a bit boring and unnecessary. As we get more familiar with it, I will describe some of its use cases and why you may find yourself both seeing and using these IIFEs a whole lot.

Custom Events

Despite the large number of events JavaScript provides out of the box for a whole bunch of scenarios, there will be times when you want to fire your own events for your own particular needs: There are many reasons for why you may want to do that. Events provide a nice level of decoupling between the thing that fires the event and the thing (or things) that listen for that event...

Web Animations and the Animate Method

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Today, you have three very distinct approaches for animating things on the web: CSS animations, CSS transitions, and requestAnimationFrame. This distinction is necessary given what each approach does: CSS animations rely on pre-defined keyframes, CSS transitions animate CSS property value from one state to another...

Drawing Rectangles (and Squares) on the Canvas

When drawing shapes on the canvas, you can actually go really REALLY far without ever having to draw a rectangle. The reason for that is simple. Rectangles are terrible things that nobody should ever have to deal with: Putting my irrational hatred for our rectangular brethren aside, a rectangle is a shape that you must learn to properly represent on a canvas...

Undo & Redo Buttons : How to get activity list for correction?

UNDO & REDO Buttons can track your activities & help you to correct your mistakes in a very easy way. Preferably, you always use Ctrl + Z to undo & Ctrl + Y to redo in your spreadsheet. But, do you remember that what changes you have made to your worksheet? If you don’t. Excel remembers it for you. You can use UNDO & REDO button from Quick Access Toolbar.

An Introduction to Excel Formulas (Part 3)

The Text Operator in question is the ampersand symbol ‘&’. The ampersand is used to carry out what is referred to as Concatenation. Concatenation, more simply put, means to join groups of text (more correctly referred to as a string) together. One example of using the ampersand operator would be the formula ‘=C2&B2’ which would join the strings of cells A2 and B2 together to create a new string.

Watching DRM'd Media on Linux

Everything has DRM these days, and while Netflix, Amazon Video, Hulu, and even DVDs and Blu-rays “just work” on most systems, Linux users always have to do a little more work. Here’s how penguin lovers can get all those services working on their machines. This is usually so complicated because DRM technologies generally don’t bother supporting Linux. Even downloaded video files require a bit of work due to patents that prevent Linux distribution from including the required codecs. But don’t worry: we’ve got you covered.

Fix Activation Error Code 0x8007267c

The very first problem users can face is We couldn’t activate Windows error with an error code 0x8007267c. This is a common problem people can get while trying to activate the Windows 10 after a fresh installation. No matter, what method you have used to install Windows 10 on your machine, you can get this same issue.

Run Old Software on Windows 10 with Compatibility Mode

Most likely you’ll run into this issue if you upgrade from Windows 7 to Windows 10. Luckily, Compatibility mode is still an option in Windows 10 for those older apps that don’t run correctly. Compatibility mode isn’t anything new, but it’s worth revisiting since there are so many old programs out there that might not run correctly on Windows 10.

HTML5 prototype: player movement like in TwinSpin game with Phaser

Basically you have two spinning orbs. Each orb spins around the other orb, one clockwise and one counter-clockwise. Tapping or clicking the screen, the spinning orb stops and the other orb starts spinning.

Create a Custom Library in OpenCart

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In this article, we're going to create a custom library which will allow you to make CURL calls. We'll try to keep things simple and straightforward, as the important thing to understand is the concept itself—the implementation may vary based on the complexity. We'll use the latest version of OpenCart. I also assume that you're aware with the module structure of OpenCart.

How to back up drivers before reinstalling or upgrading

If you’re planning to upgrade Windows or reinstall it, it’s worth backing up your drivers so you don’t have to search for and download them again. Here’s how to back up drivers in Windows. Whether you’re upgrading from a hard drive to an SSD, upgrading Windows or wiping your drive and installing Windows fresh, it’s a good idea to grab your drivers and make a copy first. Here’s how to back up drivers in Windows.

JavaFX and CSS: Pseudo Classes

In my last post I gave a quick overview of the how CSS can be used in JavaFX by styling nodes based on an id or style classes. Today I want to explain what a pseudo class is and how you can use it to style dynamic controls. In CSS a pseudo class is used to define a specific state of a node. In general a node can have 0-n pseudo classes. Let’s think about a regular JavaFX Button and how it is rendered.

Nice On-Scroll Animated Header

We are going to create an On-Scroll Animated Header that will re-size it’s height when user scroll the page. It will also nicely animated and change its sizing on scroll. Once a certain amount of the page obtains scrolled, the header will certainly decrease its size and the inner elements may adjust their font-size/line height. There are media queries for managing different screen dimensions.

Designing your own Spring Boot starter: part 1

Since its release, Spring Boot has been a huge success: it boosts developers productivity with its convention over configuration philosophy. However, sometimes, it just feels too magical. I have always been an opponent of autowiring for this exact same reason. And when something doesn’t work, it’s hard to get back on track.

Create Drift in Space Digital Art

In this Photoshop tutorial, I will show you the process of creating this “Drift in Space” Digital Art in Photoshop. This is an intermediate level difficulty tutorial and some steps can be tricky. Have a try!

How to convert LinkedList to array

You can convert a LinkedList to an array in Java by using the toArray() method of LinkedList. The toArray() method accepts an array of relevant type to store contents of LinkedList. It stores the elements in the same order they are currently inside LinkedList. By using the toArray() method you can convert any type of LinkedList e.g. Integer, String or Float to any type of Array, only catch is this you cannot convert a LinkedList to an array of primitives i.e. a LinkedList of Integer cannot be converted into an array of ints by using using toArray() method, but you can convert it to array of Integer objects, that's perfectly ok. Similarly, you can convert LinkedList of Double to an array of Double and LinkedList of Float objects to an array of floats.

How to Add a Texture Overlay to Your Images for a Stunning Effect

Adding a texture overlay to your images is an amazing creative tool. It adds another dimension of depth in the image; it makes it dreamy and adds a painting flavor. It also creates a timeless feeling, especially useful when you want to give a vintage look to your pictures. You will really love this effect, it can be used in your personal work, and also sometimes in your commissioned work when you have some creative freedom over the result.

ASP.Net Repeater CRUD

In this article I will explain with example how to perform select, insert, edit, update, delete in Repeater control in ASP.Net using C# and VB.Net. This process is also known as CRUD i.e. Create, Read, Update and Delete in Repeater control with SQL Server database backend in ASP.Net.

Fix: Airplane Mode Errors

Airplane mode is an useful feature in Windows 10, but despite the usefulness of this feature, users are reporting certain issues regarding Airplane mode and Windows 10, so let’s see if we can fix those issues. Airplane mode could save us a lot of data on trips. One issue that users have reported is that they cannot leave Airplane mode. This can cause a lot of problems and limit the usability of your device, but fortunately, there are few solutions that you can try.