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is-string (1.1.1)

Published 2026-02-24 13:58:40 +00:00 by atheaadmin

Installation

Setup this registry in your project .npmrc file:

registry=

To install the package using npm, run the following command:

npm install is-string@1.1.1

or add it to the package.json file:

"is-string": "1.1.1"

For more information on the npm registry, see the documentation.

About this package

is-string

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

Example

var isString = require('is-string');
var assert = require('assert');

assert.notOk(isString(undefined));
assert.notOk(isString(null));
assert.notOk(isString(false));
assert.notOk(isString(true));
assert.notOk(isString(function () {}));
assert.notOk(isString([]));
assert.notOk(isString({}));
assert.notOk(isString(/a/g));
assert.notOk(isString(new RegExp('a', 'g')));
assert.notOk(isString(new Date()));
assert.notOk(isString(42));
assert.notOk(isString(NaN));
assert.notOk(isString(Infinity));
assert.notOk(isString(new Number(42)));

assert.ok(isString('foo'));
assert.ok(isString(Object('foo')));

Tests

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

Dependencies

Dependencies

ID	Version
call-bound	^1.0.3
has-tostringtag	^1.0.2

Development Dependencies

ID	Version
@arethetypeswrong/cli	^0.17.1
@ljharb/eslint-config	^21.1.1
@ljharb/tsconfig	^0.2.2
@types/core-js	^2.5.8
@types/tape	^5.7.0
auto-changelog	^2.5.0
core-js	^3.39.0
eclint	^2.8.1
encoding	^0.1.13
eslint	=8.8.0
in-publish	^2.0.1
is	^3.3.0
npmignore	^0.3.1
nyc	^10.3.2
safe-publish-latest	^2.0.0
tape	^5.9.0
typescript	next

Keywords

String string ES6 toStringTag @@toStringTag String object

Details

npm

2026-02-24 13:58:40 +00:00

1

Jordan Harband

Project Site

MIT

latest

8.3 KiB

Assets (1)

is-string-1.1.1.tgz 8.3 KiB

Versions (1) View all

1.1.1 2026-02-24