.. | ||
.editorconfig | ||
.eslintrc | ||
.istanbul.yml | ||
.jscs.json | ||
.travis.yml | ||
CHANGELOG.md | ||
index.js | ||
LICENSE | ||
Makefile | ||
package.json | ||
README.md | ||
test.js |
is-callable
Is this JS value callable? Works with Functions and GeneratorFunctions, despite ES6 @@toStringTag.
Example
var isCallable = require('is-callable');
var assert = require('assert');
assert.notOk(isCallable(undefined));
assert.notOk(isCallable(null));
assert.notOk(isCallable(false));
assert.notOk(isCallable(true));
assert.notOk(isCallable([]));
assert.notOk(isCallable({}));
assert.notOk(isCallable(/a/g));
assert.notOk(isCallable(new RegExp('a', 'g')));
assert.notOk(isCallable(new Date()));
assert.notOk(isCallable(42));
assert.notOk(isCallable(NaN));
assert.notOk(isCallable(Infinity));
assert.notOk(isCallable(new Number(42)));
assert.notOk(isCallable('foo'));
assert.notOk(isCallable(Object('foo')));
assert.ok(isCallable(function () {}));
assert.ok(isCallable(function* () {}));
assert.ok(isCallable(x => x * x));
Tests
Simply clone the repo, npm install
, and run npm test