not-defined

MITJavaScript

A tiny utility that checks if a value is undefined, null, empty, or NaN for cleaner conditionals.

5 stars3 forks0 contributors

Overview

checks if foo is not defined, i.e. undefined, null, an empty string, array, object or NaN

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7 months ago

CreatedSince 2016

Auto-fetched 19 hours ago

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