Sorting an array of numbers by element size is a common task in programming. One approach to achieve this is by using the selection sort algorithm. The selection sort algorithm works by repeatedly finding the minimum element from the unsorted part of the array and moving it to the beginning. The steps involved in the algorithm are as follows: We start by selecting the first element of the array. We then compare this element with the second element....
In JavaScript, the assignment operator “=” is used to assign a value to a variable. This operator provides shortcuts for performing arithmetic operations and assigning the result to the variable. Let’s look at some examples: const a = 2; let b = 2; var c = 2; In the above code, the assignment operator is used to assign the value 2 to the variables a, b, and c. The assignment operator also has shortcuts for arithmetic operations....
In JavaScript, queues are similar to stacks but with a different way of handling data insertion and removal. They follow the First In, First Out (FIFO) principle, meaning that the first item to be added is the first one to be removed. Just like waiting in line at a restaurant, a disco, or a concert hall, items are processed in the order they were added. To implement a queue in JavaScript, we can use an array as the internal storage and utilize private class fields for encapsulation....
Dynamic imports are a new and upcoming feature in JavaScript that offer a range of possibilities. Recently, I had the opportunity to use dynamic imports in a Next.js application for code splitting. While they are similar to static imports, there are a few differences worth exploring. To begin with, a static import of an ES Module’s default export follows this syntax: import moment from 'moment' In the case of named exports, object destructuring is used:...
Expressions are essential units of code in JavaScript that can be evaluated and resolve to a specific value. In JavaScript, expressions can be categorized into several types, each serving a different purpose. Understanding these categories is crucial for writing effective and efficient JavaScript code. Let’s explore the different types of expressions in JavaScript. Arithmetic Expressions Arithmetic expressions in JavaScript involve mathematical operations and evaluate to a number. Examples of arithmetic expressions include:...
Learn the basics of JavaScript Function Parameters. A function in JavaScript can accept one or more parameters. Let’s look at some examples: const doSomething = () => { //do something } const doSomethingElse = (foo) => { //do something } const doSomethingElseAgain = (foo, bar) => { //do something } Starting from ES6/ES2015, functions can have default values for their parameters. Here’s an example: const doSomething = (foo = 1, bar = 'hey') => { //do something } This allows you to call the function without specifying all the parameters:...
JavaScript is a versatile programming language that offers a lot of flexibility to developers. However, there is one feature of JavaScript that can cause some confusion when it comes to loops and scoping. In this article, we will explore this feature and provide some tricks to work around it using var and let declarations. Let’s start with an example: const operations = [] for (var i = 0; i < 5; i++) { operations....
In this blog post, we will discuss the properties and methods of the JavaScript Object built-in object. An object in JavaScript is any value that is not of a primitive type. Even arrays or functions are actually objects under the hood. There are multiple ways to create an object in JavaScript: Using object literal syntax: const person = {} typeof person //object Using the Object global function: const person = Object() typeof person //object Using the Object constructor: const person = new Object() typeof person //object Using Object....
JavaScript operators are essential elements that allow developers to work with simple expressions and combine them to form more complex expressions. By using various operators, you can manipulate, compare, and assign values in your JavaScript code. Classifying Operators Based on Operands Operators can be classified based on the number of operands they work with. Operators with Two Operands The majority of operators in JavaScript work with two operands. These include:...
In this blog post, we’ll explore the introduction of private class fields in JavaScript and how they can be used to enforce private properties within a class. Before the availability of private class fields, developers would rely on naming conventions to indicate that a property is intended to be private. For example, prefixing the property with an underscore (_) was commonly used. However, these conventions were not strictly enforced and the private properties could still be accessed from outside the class....