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Definition 2025
falsy
falsy
English
Adjective
falsy (not comparable)
- (computing, programming) Evaluating to false in a Boolean context.
- 2012, David Flanagan, JavaScript Pocket Reference (page 40)
- In JavaScript, any expression or statement that expects a boolean value will work with a truthy or falsy value, so the fact that
&&does not always evaluate totrueorfalsedoes not cause practical problems.
- In JavaScript, any expression or statement that expects a boolean value will work with a truthy or falsy value, so the fact that
- 2012, David Flanagan, JavaScript Pocket Reference (page 40)
Antonyms
- (computing): truthy