JavaScript Fundamentals JavaScript fundamentals lay the groundwork for understanding the language's core concepts, including variables and data types, operators and expressions, and control flow structures. Variables and Data Types: In JavaScript, variables are containers for storing data values. Variables can hold various types of data, including numbers, strings, booleans, arrays, objects, and more. Here's an example of declaring and initializing variables: // Variable declaration and initialization let name = "John"; let age = 30; let isStudent = true; let fruits = ["apple", "banana", "orange"]; let person = { firstName: "John", lastName: "Doe" }; Operators and Expressions: Operators in JavaScript allow you to perform operations on variables and values. JavaScript supports various types of operators, including arithmetic, assignment, comparison, logical, and bitwise operators. Expressions are com
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