A software engineer trying to document his journey of learning.
introduction Arrays are a fundamental data structure in JavaScript, and the ability to perform complex operations on them is essential for any developer. One powerful tool for manipulating arrays is the reduce() method, which enables you to perform c...
In JavaScript, we have three ways to declare variables: var, let, and const. While var and let are relatively straightforward, const has some nuances that can catch developers off guard. Specifically, there is a difference between redeclaring a const...
JavaScript is one of the most widely used programming languages in the world, and it's a popular choice for building web applications. However, as with any programming language, JavaScript code can contain errors. These errors can cause your program ...
In JavaScript, accessing nested properties or checking if a value is null or undefined can lead to errors if not handled properly. Fortunately, JavaScript has introduced two new operators - nullish coalescing and optional chaining - that can help sim...
One of the most commonly used methods for debugging and troubleshooting in JavaScript is the console.log method. Developers use it to output data and messages to the browser console to gain insights into the state of their application. However, there...
The reason why an object literal must be wrapped in parentheses when returned from an arrow function, but not from a traditional function, is related to the rules for Automatic Semicolon Insertion (ASI) in JavaScript. Read more about 馃憠馃徏Automatic Se...
Automatic Semicolon Insertion (ASI) is a mechanism in JavaScript that automatically inserts semicolons at certain points in the code if they are missing. It is an error recovery mechanism that helps to prevent syntax errors by automatically adding se...
You may have seen double and triple equals signs in JavaScript. But what do they mean? == and === are two comparison operators in JavaScript that are used to determine equality between two values. Although they might seem similar at first, there are ...
Every component in Angular has a lifecycle, and different phases it goes through from the time of creation to the time it's destroyed. Angular provides hooks to tap into these phases and trigger changes at specific phases in a lifecycle. ngOnChanges(...