is-primitive

Returns true if the value is a primitive.

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Install

Install with npm:

1$ npm install --save is-primitive

Primitive values

The Mozilla docs for "Primitive values" defines specifies six data types that are primitives:

• Boolean
• Null
• Undefined
• Number
• String
• Symbol (new in ECMAScript 6)

Usage

1var isPrimitive = require('is-primitive');

true

All of the following return true:

1console.log(isPrimitive(false));
2console.log(isPrimitive(true));
3console.log(isPrimitive(null));
4console.log(isPrimitive());
5console.log(isPrimitive(42));
6console.log(isPrimitive('abc'));
7console.log(isPrimitive(Symbol()));
8//=> true

false

Everything else returns false:

1console.log(isPrimitive({}));
2console.log(isPrimitive([]));
3console.log(isPrimitive(function(){}));
4console.log(isPrimitive(new Date()));
5// et cetera...
6//=> false

About

1$ npm install && npm test

1$ npm install -g verbose/verb#dev verb-generate-readme && verb

Related projects

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

Contributors

Author

Jon Schlinkert

• github/jonschlinkert
• twitter/jonschlinkert

License

Copyright © 2017, Jon Schlinkert. Released under the MIT License.

This file was generated by verb-generate-readme, v0.6.0, on November 23, 2017.