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is-primitive

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Returns `true` if the value is a primitive.

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# is-primitive [![NPM version](https://img.shields.io/npm/v/is-primitive.svg?style=flat)](https://www.npmjs.com/package/is-primitive) [![NPM monthly downloads](https://img.shields.io/npm/dm/is-primitive.svg?style=flat)](https://npmjs.org/package/is-primitive) [![NPM total downloads](https://img.shields.io/npm/dt/is-primitive.svg?style=flat)](https://npmjs.org/package/is-primitive) [![Linux Build Status](https://img.shields.io/travis/jonschlinkert/is-primitive.svg?style=flat&label=Travis)](https://travis-ci.org/jonschlinkert/is-primitive) > Returns `true` if the value is a primitive. Please consider following this project's author, [Jon Schlinkert](https://github.com/jonschlinkert), and consider starring the project to show your :heart: and support. ## Install Install with [npm](https://www.npmjs.com/): ```sh $ npm install --save is-primitive ``` ## Primitive values The [Mozilla docs for "Primitive values"](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Primitive_values) defines specifies six data types that are primitives: * `Boolean` * `Null` * `Undefined` * `Number` * `String` * `Symbol` (new in ECMAScript 6) ## Usage ```js var isPrimitive = require('is-primitive'); ``` ## true All of the following return `true`: ```js 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 ``` ## false Everything else returns `false`: ```js console.log(isPrimitive({})); console.log(isPrimitive([])); console.log(isPrimitive(function(){})); console.log(isPrimitive(new Date())); // et cetera... //=> false ``` ## About <details> <summary><strong>Contributing</strong></summary> Pull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new). </details> <details> <summary><strong>Running Tests</strong></summary> 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: ```sh $ npm install && npm test ``` </details> <details> <summary><strong>Building docs</strong></summary> _(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_ To generate the readme, run the following command: ```sh $ npm install -g verbose/verb#dev verb-generate-readme && verb ``` </details> ### Related projects You might also be interested in these projects: * [is-number](https://www.npmjs.com/package/is-number): Returns true if the value is a number. comprehensive tests. | [homepage](https://github.com/jonschlinkert/is-number "Returns true if the value is a number. comprehensive tests.") * [is-plain-object](https://www.npmjs.com/package/is-plain-object): Returns true if an object was created by the `Object` constructor. | [homepage](https://github.com/jonschlinkert/is-plain-object "Returns true if an object was created by the `Object` constructor.") * [kind-of](https://www.npmjs.com/package/kind-of): Get the native type of a value. | [homepage](https://github.com/jonschlinkert/kind-of "Get the native type of a value.") ### Contributors | **Commits** | **Contributor** | | --- | --- | | 11 | [jonschlinkert](https://github.com/jonschlinkert) | | 1 | [ljharb](https://github.com/ljharb) | | 1 | [bttmly](https://github.com/bttmly) | | 1 | [hemanth](https://github.com/hemanth) | ### Author **Jon Schlinkert** * [github/jonschlinkert](https://github.com/jonschlinkert) * [twitter/jonschlinkert](https://twitter.com/jonschlinkert) ### License Copyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert). Released under the [MIT License](LICENSE). *** _This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on November 23, 2017._