is-arrow-function

npm module to determine if a function is an ES6 arrow function or not.

NOTE: Only works in Firefox at the moment.

Example

var isArrowFunction = require('is-arrow-function');
assert(!isArrowFunction(function () {}));
assert(!isArrowFunction(null));
assert(isArrowFunction((a, b) => a * b));
assert(isArrowFunction(() => 42));
assert(isArrowFunction(x => x * x));
assert(isArrowFunction(x => () => x * x));

Tests

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

2.0.3 / 2015-08-16

• [Docs] Rename repo - "node-" is unnecessary
• [Docs] Switch from vb.teelaun.ch to versionbadg.es for the npm version badge SVG
• [Deps] update is-callable
• [Dev Deps] update tape, jscs, covert, nsp
• [Tests] up to io.js v3.0
• [Tests] add npm run eslint and npm run security

2.0.2 / 2015-01-29

• Update tape, jscs
• Bail out early if typeof is not "function".
• Use is-callable to remove Object#toString checks.

2.0.1 / 2014-12-15

• Use make-arrow-function instead of a local module.

2.0.0 / 2014-12-03

• Fixing arrow function detection.
• Update tape, jscs
• Lock covert to v1.0.0, per https://github.com/substack/covert/issues/9
• Clean up README
• Adding npm run lint

1.0.2 / 2014-08-10

• Skip arrow function tests when arrow functions are not supported
• Handle IE 9/10’s weird whitespacing
• Update tape, covert

1.0.1 / 2013-12-07

• Fix functions with a faked toString
• Update tape

1.0.0 / 2013-09-12

• Initial release.