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Nanoscale assertion module





Build Status

Nanoscale assertion module


var assert = require('nanoassert')

assert(a !== b, `${a} !== ${b}`)


assert(declaration, [message])

Assert that declaration is truthy otherwise throw AssertionError with optional message. In Javascript runtimes that use v8, you will get a nicer stack trace with this error. If you want friendlier messages you can use template strings to show the assertion made like in the example above.


I like to write public facing code very defensively, but have reservations about the size incurred by the assert module. I only use the top-level assert method anyway.


Docs for the previous version, which is used by many modules on npm, can be found here


npm install nanoassert