tree: b52ca9cd31a735acf252c78648e9c1e2d20dc88e [path history] [tgz]
  1. test/
  2. .eslintrc
  3. .jscs.json
  4. .npmignore
  5. .travis.yml
  6. CHANGELOG.md
  7. implementation.js
  8. index.js
  9. LICENSE
  10. package.json
  11. polyfill.js
  12. README.md
  13. shim.js
src/third_party/devtools/node_modules/is-nan/README.md

#is-nan Version Badge

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browser support

ES6-compliant shim for Number.isNaN - the global isNaN returns false positives.

This package implements the es-shim API interface. It works in an ES3-supported environment and complies with the spec.

Example

Number.isNaN = require('is-nan');
var assert = require('assert');

assert.notOk(Number.isNaN(undefined));
assert.notOk(Number.isNaN(null));
assert.notOk(Number.isNaN(false));
assert.notOk(Number.isNaN(true));
assert.notOk(Number.isNaN(0));
assert.notOk(Number.isNaN(42));
assert.notOk(Number.isNaN(Infinity));
assert.notOk(Number.isNaN(-Infinity));
assert.notOk(Number.isNaN('foo'));
assert.notOk(Number.isNaN(function () {}));
assert.notOk(Number.isNaN([]));
assert.notOk(Number.isNaN({}));

assert.ok(Number.isNaN(NaN));

Tests

Simply clone the repo, npm install, and run npm test