The term “asynchronous” is often associated with JavaScript. Asynchronous is a confusing concept, especially for beginners. Programmers fail to understand what is asynchronous programming and how it is associated with JavaScript. It becomes more confusing when they realize JavaScript is actually synchronous, not asynchronous. So how can we relate JavaScript with asynchronous? As...
In programming, functions play a very crucial part. A function is an organized block of code that is created for a specific task. It can also accept and return values. The main purpose of using functions is code reusability. There is a lot about functions in JavaScript. In JavaScript, functions are higher-order functions. To understand this term – “Higher-order functions”, we...
If you have ever come across Node.js, then you may have heard the word “Express.js”. Express is also a part of popular full-stack web development stacks – MEAN and MERN. M, A/R, and N, meaning MongoDB, Angular/React, and Node.js, respectively are very popular in the web development community, while E, i.e. Express.js is unpopular. Many developers who work with MEAN or MERN stack...
The word “Node.js” is very popular today in the web development community. Everyone is talking about Node.js. The IT giants, startups, everyone wants Node.js developers. But what is Node.js and why it is so popular? Simply put, Node.js is nothing but JavaScript outside the browser. Yes, you read it right. Node.js is JavaScript that runs outside the browser. Not much difference, right...
Traditional software application development depended upon a mirroring of all conditions across launch environments including the supporting hardware structure and configuration, the operating system, and the asset files. Even slight variations between the development environment and the launch environment can result in application error or failure. This model of software development and launch...
There are times when you need to create a basic HTML form that provides validation to end users. Without leveraging a framework or additional libraries, this can be easily achieved by using JavaScript directly. This article walks through the basic steps of creating a simple validated form using basic selectors and error handling. Our requirements are: For successful submission, all fields must be...
In my last post I walked through the process of setting up a local instance of AppWorks 20.2 using the container image from OpenText. Any development work ideally should be managed in Version Control System (VCS). The preferred VCS for OpenText AppWorks is Subversion (SVN). It has been a long time since I used SVN so I needed to quickly bring myself up to speed. Thankfully there is a handy quick...
The latest version of OpenText AppWorks Cloud Edition (CE) 20.2 was recently released and promises to improve “developer agility through simplification and improved visibility with a new List Designer, new Action Bar Designer and added support for full translation of layouts.” In addition this release comes available packaged in a Docker container, which makes it much easier to setup...
This past September (2019) I decided I would make a commitment to making language learning a daily part of my life. As it so happened, my job also changed around this time, increasing my commute time and therefore bringing a new opportunity to use this time wisely. Since then, I have completed all five levels of Pimsleur Spanish and coupled my study with several other programs. My approach seems...
I’ve always had an interest in learning Spanish. Over the years, I’ve dabbled with various language learning programs, however I never really stuck at them for long. I have probably spent more time researching language learning programs and techniques, than I have actually practiced the language. The United States Foreign Service Institute, or FSI, estimates that the Spanish...
In programming, there are many ways to work with strings. A performant way to work with them is through the use of Regular expressions, also known as Regex. By using regular expressions, you can search for a substring within a string, replace a substring within a string, and extract information from that string. Regular expressions are supported in almost every language. There can be small...
EcmaScript is the standardized scripting language that JavaScript and some other languages, like ActionScript implement. JavaScript was invented by Brendan Eich in 1995 and became an ECMA standard in 1997. ECMAScript 2015 is version 6 of the ECMA Script programming language therefore known as ES6. There are many new features in ES6 which are listed below:- Block Scoping The lack of block scoping...
The way in which logical structure of a document is accessed and manipulated in HTML is known as Document Object Model or DOM. It is a programming interface for HTML. Whenever a document loads in the browser, a tree-like (or forest) structure is created. Methods provided by the DOM can be used to access and manipulate this tree programmatically. Why use DOM? The DOM is used to access and...
If you’ve been doing any development in Angular, the chances are you have been using Visual Studio Code (VS Code) for your editor. If you haven’t been using Visual Studio Code, I highly recommend checking it out. There are a number of extensions that I have come to rely on that greatly simplify my development workflow listed below. I’ve included my favorite top ten with their...
The last couple of lessons focused on arrays, and hopefully by now you will have come to see the value of using them in your code. Objects expand on the concept of arrays, except for a few differences, which provide greater control of the data stored. It is said, in Javascript, “Almost everything is objects”. Dates are always objects, Arrays are always objects, functions are always...
While keyword research, link-building, content optimization, and other on-page strategies can improve your domain’s search ranking, search engine optimization (SEO) starts with getting your pages indexed and to do that you need to ensure they’re crawler-friendly. Crawler bots, like human users, appreciate sites which have clear, structured, readable data. However, since crawlers can...
Object-oriented programming (OOP) is the most common programming type and an essential part of popular programming languages, such as Java, C++ and C#. Its name offers an insight into how OOP languages work, which is by revolving around objects and using objects to get things done. The term object refers to a chunk of code that acts together as a whole and can be reused at any time, as well as...
ES6 introduced a number of exciting features to the JavaScript standard: classes, string templates, array and object de-structuring, block-scope variable declarations with “let” and “const”, and perhaps the most visible new feature, arrow functions. Arrow functions have quickly become the standard way of writing functions among professional JavaScript developers. Because...
Anyone who has worked in JavaScript for any amount of time will likely come across concepts that require a deeper level of study in order to fully understand. Closures is certainly one of those areas that has caused me to review and experiment with several times. The purpose of this article is to provide a succinct overview of closures and offer several snippets of code to play around with in...
I am a software developer and online educator who likes to keep up with all the latest in technology. I also manage cloud infrastructure, continuous monitoring, DevOps processes, security, and continuous integration and deployment.