Returns
true
if the value is a primitive.
Please consider following this project's author, Jon Schlinkert, and consider starring the project to show your ❤️ and support.
Install with npm:
$ npm install --save is-primitive
The Mozilla docs for "Primitive values" defines specifies six data types that are primitives:
Boolean
Null
Undefined
Number
String
Symbol
(new in ECMAScript 6)
var isPrimitive = require('is-primitive');
All of the following return true
:
console.log(isPrimitive(false));
console.log(isPrimitive(true));
console.log(isPrimitive(null));
console.log(isPrimitive());
console.log(isPrimitive(42));
console.log(isPrimitive('abc'));
console.log(isPrimitive(Symbol()));
//=> true
Everything else returns false
:
console.log(isPrimitive({}));
console.log(isPrimitive([]));
console.log(isPrimitive(function(){}));
console.log(isPrimitive(new Date()));
// et cetera...
//=> false
Contributing
Pull requests and stars are always welcome. For bugs and feature requests, please create an issue.
Running Tests
Running and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:
$ npm install && npm test
Building docs
(This project's readme.md is generated by verb, please don't edit the readme directly. Any changes to the readme must be made in the .verb.md readme template.)
To generate the readme, run the following command:
$ npm install -g verbose/verb#dev verb-generate-readme && verb
You might also be interested in these projects:
- is-number: Returns true if the value is a number. comprehensive tests. | homepage
- is-plain-object: Returns true if an object was created by the
Object
constructor. | homepage - kind-of: Get the native type of a value. | homepage
Commits | Contributor |
---|---|
11 | jonschlinkert |
1 | ljharb |
1 | bttmly |
1 | hemanth |
Jon Schlinkert
Copyright © 2017, Jon Schlinkert. Released under the MIT License.
This file was generated by verb-generate-readme, v0.6.0, on November 23, 2017.