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jonschlinkert/is-number

View on GitHub ↗ ★ 288 JavaScript

JavaScript/Node.js utility. Returns `true` if the value is a number or string number. Useful for checking regex match results, user input, parsed strings, etc.

6 mentions on Hacker News by 5 people: 1 story, 5 comments · first 2020-06-08 · latest 2025-09-21