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Operators are essential tools in JavaScript that allow you to perform operations on variables and values. They enable you to manipulate data, make decisions, and control the flow of your programs. JavaScript provides a wide range of operators, categorized into several types: 1. Arithmetic Operators Arithmetic operators are used to perform mathematical calculations. The most common arithmetic operators include: Addition ( + ): Adds two operands. let sum = 5 + 3 ; // sum is 8 Subtraction ( - ): Subtracts the second operand from the first. let difference = 5 - 3 ; // difference is 2 Multiplication ( * ): Multiplies two operands. let product = 5 * 3 ; // product is 15 Division ( / ): Divides the first operand by the second. let quotient = 15 / 3 ; // quotient is 5 Modulus ( % ): Returns the remainder of a division operation. let remainder = 5 % 3 ; // remainder is 2 2. Comparison Operators Comparison operators are used to compare two values and...

Primitive Data Types JavaScript, the backbone of modern web development, empowers developers to create interactive and dynamic user experiences. One of the foundational concepts in JavaScript—and indeed in any programming language—is the notion of data types. Understanding these types is crucial for writing efficient and effective code. In this article, we’ll dive into the various data types available in JavaScript, exploring their characteristics and how they can be leveraged to enhance your programming skills. Whether you're a beginner or looking to refresh your knowledge, this guide will provide valuable insights into the diverse landscape of JavaScript data types. JavaScript has six primitive data types: String: Represents textual data. Strings are enclosed in single quotes (' '), double quotes (" "), or backticks (` `). let name = 'John Doe' ; Number: Represents b...

In JavaScript, variables are essential tools for storing and manipulating data. Whether you're creating simple scripts or complex applications, variables allow you to reference data that can change or remain constant throughout your program. In this article, we will explore what variables are, how to declare them, and the different types of variables in JavaScript. What is a Variable? A variable in JavaScript is a named container that stores a value. This value can be a number, string, boolean, object, or other types of data. Variables allow you to reuse values throughout your code without needing to rewrite them. let age = 25 ; console.log(age); // Outputs: 25 Declaring Variables in JavaScript JavaScript provides three main ways to declare variables: var let const Each has its own scope and behavior, and it’s important to know when to use each one. 1. var : The Old Way var is t...