| # has-values [](https://www.npmjs.com/package/has-values) [](https://npmjs.org/package/has-values) [](https://npmjs.org/package/has-values) [](https://travis-ci.org/jonschlinkert/has-values) |
| |
| > Returns true if any values exist, false if empty. Works for booleans, functions, numbers, strings, nulls, objects and arrays. |
| |
| ## Install |
| |
| Install with [npm](https://www.npmjs.com/): |
| |
| ```sh |
| $ npm install --save has-values |
| ``` |
| |
| ## Usage |
| |
| ```js |
| var hasValue = require('has-values'); |
| |
| hasValue('a'); |
| //=> true |
| |
| hasValue(''); |
| //=> false |
| |
| hasValue(1); |
| //=> true |
| |
| hasValue(0); |
| //=> false |
| |
| hasValue({a: 'a'}}); |
| //=> true |
| |
| hasValue({}); |
| hasValue({foo: undefined}); |
| //=> false |
| |
| hasValue({foo: null}); |
| //=> true |
| |
| hasValue(['a']); |
| //=> true |
| |
| hasValue([]); |
| hasValue([[], []]); |
| hasValue([[[]]]); |
| //=> false |
| |
| hasValue(['foo']); |
| hasValue([0]); |
| //=> true |
| |
| hasValue(function(foo) {}); |
| //=> true |
| |
| hasValue(function() {}); |
| //=> true |
| |
| hasValue(true); |
| //=> true |
| |
| hasValue(false); |
| //=> true |
| ``` |
| |
| ## isEmpty |
| |
| To test for empty values, do: |
| |
| ```js |
| function isEmpty(o, isZero) { |
| return !hasValue(o, isZero); |
| } |
| ``` |
| |
| ## Release history |
| |
| ### v1.0.0 |
| |
| * `zero` always returns true |
| * `array` now recurses, so that an array of empty arrays will return `false` |
| * `null` now returns true |
| |
| ## About |
| |
| ### Related projects |
| |
| * [has-value](https://www.npmjs.com/package/has-value): Returns true if a value exists, false if empty. Works with deeply nested values using… [more](https://github.com/jonschlinkert/has-value) | [homepage](https://github.com/jonschlinkert/has-value "Returns true if a value exists, false if empty. Works with deeply nested values using object paths.") |
| * [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.") |
| * [isobject](https://www.npmjs.com/package/isobject): Returns true if the value is an object and not an array or null. | [homepage](https://github.com/jonschlinkert/isobject "Returns true if the value is an object and not an array or null.") |
| * [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.") |
| |
| ### Contributing |
| |
| Pull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new). |
| |
| ### Building docs |
| |
| _(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 |
| ``` |
| |
| ### 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: |
| |
| ```sh |
| $ npm install && npm test |
| ``` |
| |
| ### 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 May 19, 2017._ |