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  1. JavaScript Logical Operators - W3Schools

    JavaScript Logical Operators Logical operators are used to determine the logic between variables or values. Given that x = 6 and y = 3, the table below explains the logical operators:

  2. What does the !! (double exclamation mark) operator do in ...

    Because JavaScript has what are called "truthy" and "falsy" values, there are expressions that when evaluated in other expressions will result in a true or false condition, even though the value or …

  3. How the Question Mark (?) Operator Works in JavaScript

    Feb 3, 2021 · The conditional or question mark operator, represented by a ?, is one of the most powerful features in JavaScript. The ? operator is used in conditional statements, and when paired with a :, …

  4. JavaScript Operators Reference - W3Schools

    Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.

  5. Nullish coalescing operator (??) - JavaScript | MDN

    Aug 26, 2025 · The nullish coalescing (??) operator is a logical operator that returns its right-hand side operand when its left-hand side operand is null or undefined, and otherwise returns its left-hand side …

  6. JavaScript Logical Operators - GeeksforGeeks

    Jan 16, 2026 · Logical operators in JavaScript are used to combine or modify boolean values to make decisions. They help control program flow by evaluating whether one or more conditions are true or …

  7. Logical operators - The Modern JavaScript Tutorial

    Jun 5, 2022 · In classical programming, the logical OR is meant to manipulate boolean values only. If any of its arguments are true, it returns true, otherwise it returns false. In JavaScript, the operator is a …

  8. An Introduction to JavaScript Logical Operators By Examples

    In this tutorial, you will learn how to use JavaScript logical operators including logical NOT (!) AND (&&), and OR (|) operators.

  9. JavaScript Operators

    Dive into the world of JavaScript operators, from arithmetic and comparison to logical and assignment operators. Explore their diverse functionalities in manipulating values, controlling program flow, and …

  10. Expressions and operators - JavaScript | MDN - MDN Web Docs

    Jul 8, 2025 · This chapter describes JavaScript's expressions and operators, including assignment, comparison, arithmetic, bitwise, logical, string, ternary and more.