is-regex
DefinitelyTyped icon, indicating that this package has TypeScript declarations provided by the separate @types/is-regex package

1.1.4 • Public • Published

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Is this value a JS regex? This module works cross-realm/iframe, and despite ES6 @@toStringTag.

Example

var isRegex = require('is-regex');
var assert = require('assert');

assert.notOk(isRegex(undefined));
assert.notOk(isRegex(null));
assert.notOk(isRegex(false));
assert.notOk(isRegex(true));
assert.notOk(isRegex(42));
assert.notOk(isRegex('foo'));
assert.notOk(isRegex(function () {}));
assert.notOk(isRegex([]));
assert.notOk(isRegex({}));

assert.ok(isRegex(/a/g));
assert.ok(isRegex(new RegExp('a', 'g')));

Tests

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

Versions

Current Tags

  • Version
    Downloads (Last 7 Days)
    • Tag
  • 1.1.4
    32,784,211
    • latest

Version History

  • Version
    Downloads (Last 7 Days)
    • Published
  • 1.1.4
    32,784,211
  • 1.1.3
    1,199,111
  • 1.1.2
    4,796,178
  • 1.1.1
    3,301,416
  • 1.1.0
    1,066,257
  • 1.0.5
    2,299,124
  • 1.0.4
    2,205,051
  • 1.0.3
    6,610
  • 1.0.2
    21
  • 1.0.1
    22
  • 1.0.0
    14
  • 0.0.0
    14

Package Sidebar

Install

npm i is-regex

Weekly Downloads

30,033,869

Version

1.1.4

License

MIT

Unpacked Size

30.1 kB

Total Files

10

Last publish

Collaborators

  • ljharb