Logical operators can be used to modify the results of comparisons. Typically, you will use a comparison operator to check a condition, and a logical operator to combine conditions into …

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Jul 28, 2025 · Logical operators in JavaScript are used to perform logical operations on values and return either true or false. These operators are commonly used in decision-making …

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.

Jul 8, 2025 · The logical OR (||) (logical disjunction) operator for a set of operands is true if and only if one or more of its operands is true. It is typically used with boolean (logical) values.

JavaScript Logical Operators ... Note Logical operators are fully described in the JS Logical chapter.

Jun 5, 2022 · Here we cover the first three, the ?? operator is in the next article. Although they are called “logical”, they can be applied to values of any type, not only boolean.

Jul 8, 2025 · The logical OR assignment (||=) operator only evaluates the right operand and assigns to the left if the left operand is falsy.

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

Jul 8, 2025 · The logical AND (&&) (logical conjunction) operator for a set of boolean operands will be true if and only if all the operands are true. Otherwise it will be false.