The break statement in JavaScript is used to exit a loop (or a switch statement) immediately, even if the loop’s condition is not yet false. When the break statement is executed, the control flow jumps out of the loop or …
The continue statement in JavaScript is used within loops to skip the current iteration and move directly to the next one. This is useful when certain conditions are met, and you want to bypass the rest of the code in …
In JavaScript, an anonymous function is a function that doesn’t have a name. These functions are typically used when you need to pass a function as an argument, return a function from another function, or create an inline function that …
In JavaScript, recursive functions are functions that call themselves. They are especially useful for solving problems that can be broken down into smaller, similar subproblems. A recursive function continues to call itself until it reaches a base case—a condition that …
JavaScript supports octal and binary literals for working with numbers in octal (base-8) and binary (base-2) formats. This can be helpful when dealing with certain types of numerical data, such as file permissions, binary data, bitwise operations, and low-level system …
In JavaScript, variables are used to store data that can be referenced and manipulated throughout a program. They act as containers for data values and play a fundamental role in programming. This tutorial will guide you through the basics of …
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 …