npm
phun-ky/typeof
A set of JavaScript helper functions to check for types
MITSep 15, 2026 · metrics 2.10.0
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#isnumber
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npm
isaacs/core-util-is
The util.is* functions from Node core
MITSep 16, 2026 · metrics 2.10.0
npm
jonschlinkert/is-number
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.
MITSep 16, 2026 · metrics 2.10.0