peach a19a732be8 commit message | %!s(int64=2) %!d(string=hai) anos | |
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.github | %!s(int64=2) %!d(string=hai) anos | |
test | %!s(int64=2) %!d(string=hai) anos | |
.editorconfig | %!s(int64=2) %!d(string=hai) anos | |
.eslintignore | %!s(int64=2) %!d(string=hai) anos | |
.eslintrc | %!s(int64=2) %!d(string=hai) anos | |
.istanbul.yml | %!s(int64=2) %!d(string=hai) anos | |
.nycrc | %!s(int64=2) %!d(string=hai) anos | |
CHANGELOG.md | %!s(int64=2) %!d(string=hai) anos | |
LICENSE | %!s(int64=2) %!d(string=hai) anos | |
README.md | %!s(int64=2) %!d(string=hai) anos | |
index.js | %!s(int64=2) %!d(string=hai) anos | |
package.json | %!s(int64=2) %!d(string=hai) anos |
Is this JS value callable? Works with Functions and GeneratorFunctions, despite ES6 @@toStringTag.
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));
Install with
npm install is-callable
Simply clone the repo, npm install
, and run npm test