is-symbol
Determine if a value is an ES6 Symbol or not.
Last updated 5 years ago
by ljharb
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MIT
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package.json
$ npm install is-symbol
SYNC missed versions from
official npm registry.
is-symbol 
Is this an ES6 Symbol value?
Example
var isSymbol = require('is-symbol');
assert(!isSymbol(function () {}));
assert(!isSymbol(null));
assert(!isSymbol(function* () { yield 42; return Infinity; });
assert(isSymbol(Symbol.iterator));
assert(isSymbol(Symbol('foo')));
assert(isSymbol(Symbol.for('foo')));
assert(isSymbol(Object(Symbol('foo'))));
Tests
Simply clone the repo, npm install, and run npm test
Current Tags
- 1.1.1 ... latest (12 days ago)
7 Versions
Maintainers (1)
ljharb
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Dependencies (1)
- has-symbols ^1.0.1
Dev Dependencies (8)
- @ljharb/eslint-config ^15.0.2
- auto-changelog ^1.16.2
- covert ^1.1.1
- eslint ^6.6.0
- object-inspect ^1.7.0
- safe-publish-latest ^1.1.4
- semver ^6.3.0
- tape ^4.11.0