The logical OR assignment operator (||=) works like the assignment operator (=), but assigns only when the left-hand side is a falsy value.

This article discusses some basic HTML guidelines for creating better forms. It deals with HTML tags & attributes that can help user to fill the form better.

This tutorial discusses installation of AWS Node.js SDK and getting started with it.

In this article step-by-step process is discussed to setup LAMP stack in Azure, with Ubuntu 18.04 as the operating system.

Javascript provides multiple methods that can check whether a sub-string is contained in a string, depending on various possible use-cases.

In this article step-by-step process is discussed to setup LAMP stack in AWS EC2, with Ubuntu 20.04 as the operating system.

The new.target property can be used to detect whether a function was invoked as a constructor using the new operator, or just called normally.

Creating a vertical direction text with horizontal characters can be achieved using text-orientation & writing-mode CSS properties.

Currently it is not possible to get file upload progress for fetch. The alternate solution for now is to use XMLHttpRequest.

Checking whether an element is visible or hidden in the full page, even through it may not be in screen view, can be done through an Intersection Observer. The trick is to set the root element to document.documentElement.

Detecting an element for change in dimensions using JS can be done with the ResizeObserver interface. This is supported in all modern browsers.

Device dark mode can be checked in Javascript by using window.matchMedia() to check a match for the prefers-color-scheme: dark CSS media query.

A multi-row layout where the last DIV needs to be placed at bottom of its parent container can be created using CSS flex, by setting margin-top as auto for the last element.

Property value in a deeply nested Javascript object can be found using the Optional Chaining Operator, introduced in ES2020.

A two-column layout, where the first item is aligned to the left, and the second item is aligned to the extreme right, can be created using justify-content CSS flex property.

Failed HTTP responses can be handled in fetch() by checking whether the returned Promise was rejected due to a network error. Subsequently the Response.ok property needs to be checked for an invalid HTTP status code.

A responsive slider / carousel can be created with CSS flexbox using the order property. Items can be repeated infinitely in a circular loop by changing the order property each time.

A text file on a server can be read with Javascript by downloading the file with Fetch / XHR and reading the response as text.

A three-column layout where items are aligned to left, center and right can be created with CSS flex, and using justify-content property.

Javascript fetch method can be used to upload files to server. fetch is Promise-based, so we can use async / await to write synchronous styled functions.