In JavaScript, arrays are versatile data structures used to store multiple values in a single variable. Arrays can contain a mix of different data types, including numbers, strings, objects, other arrays, and more. This tutorial covers the basics of creating…
JavaScript Numeric Separators were introduced in ECMAScript 2021 (ES12) to make large numbers easier to read and understand by adding underscores (_) as separators. This is particularly useful when dealing with large numbers like credit card numbers, IDs, or any…
Comments in JavaScript are used to explain code, make notes, or temporarily disable parts of code. Comments are ignored by the JavaScript engine when executing the script. Proper use of comments can help make your code easier to understand, both…
The const keyword in JavaScript is used to declare variables that have a constant reference, meaning their values cannot be reassigned after they are declared. Introduced in ES6 (ECMAScript 2015), const is similar to let in that it is block-scoped,…
The let keyword in JavaScript is used to declare variables that can be reassigned later. Introduced in ES6 (ECMAScript 2015), let is block-scoped, which means it is confined to the block (usually denoted by {}) in which it is declared.…
JavaScript introduced logical assignment operators in ES2021 (ES12) to simplify common patterns where logical operators are combined with assignment. These operators combine logical operations (||, &&, ??) with assignment (=) in a compact way. The logical assignment operators include: Logical…
The nullish coalescing operator (??) in JavaScript is used to handle null or undefined values. It provides a way to assign a default value when dealing with variables that might have null or undefined values. This operator is particularly useful…
The exponentiation operator (**) in JavaScript is used to raise a number (the base) to the power of another number (the exponent). This operator was introduced in ECMAScript 2016 (ES7) and provides a more concise and readable way to perform…
The remainder operator (%) in JavaScript returns the remainder left over when one number is divided by another. It is commonly referred to as the modulus operator. This operator is useful in a variety of scenarios, such as checking for…
JavaScript provides a set of arithmetic operators that allow you to perform mathematical operations such as addition, subtraction, multiplication, and division. These operators are crucial for various calculations in JavaScript programming. Here’s a breakdown of each arithmetic operator with multiple…
Here are 10 JavaScript conversion programs covering various scenarios like unit conversions, data type conversions, and currency conversions. Each program includes an explanation of how it works. 1. String to Number Conversion Converts a string input into a number using…
A leap year is a year that is divisible by 4, but if it is also divisible by 100, it should be divisible by 400 to be a leap year. In this tutorial, we will write JavaScript programs to check…
In this tutorial, we’ll create a JavaScript program that generates a random number within a specified range using JavaScript’s built-in Math functions. Here’s a simple JavaScript program to generate a random number between a specified minimum and maximum value: //…
In this tutorial, we’ll create a simple calculator using JavaScript that can perform basic arithmetic operations: addition, subtraction, multiplication, and division. We’ll use the prompt() function for input and switch statement to handle different operations. Here’s the full code for…
Here are some JavaScript programs that check if a given number is a prime number. A prime number is a number greater than 1 that has no positive divisors other than 1 and itself. Example 1: Basic Prime Number Check…
The for loop is one of the most commonly used looping structures in JavaScript. It allows you to execute a block of code a specific number of times, based on a condition. It is typically used when you know beforehand…