Tin mới
JavaScript: Scripting language
Web APIs: Programming interfaces
Structuring content with HTML module
Dynamic scripting with JavaScript module
The logical AND expression is a short-circuit operator. As each operand is converted to a boolean, if the result of one conversion is found to be false, the AND operator stops and returns the original value of that falsy
The AND operator has a higher precedence than the OR operator, meaning the && operator is executed before the || operator (see operator precedence).
This page was last modified on Jul 8, 2025 by MDN contributors.