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.
- number
- is
- isnan
- javascript
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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.
Runtime type checking for JS with Hindley Milner signatures
Create validations with ease