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:
$ npm install --save has-valuesUsage#
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);
//=> trueisEmpty#
To test for empty values, do:
function isEmpty(o, isZero) {
return !hasValue(o, isZero);
}Release history#
v1.0.0#
zeroalways returns truearraynow recurses, so that an array of empty arrays will returnfalsenullnow returns true
About#
Related projects#
- has-value: Returns true if a value exists, false if empty. Works with deeply nested values using… more | homepage
- 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
Objectconstructor. | homepage - isobject: Returns true if the value is an object and not an array or null. | homepage
- kind-of: Get the native type of a value. | homepage
Contributing#
Pull requests and stars are always welcome. For bugs and feature requests, please create an issue.
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 && verbRunning 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 testAuthor#
Jon Schlinkert
License#
Copyright © 2017, Jon Schlinkert.
Released under the MIT License.
This file was generated by verb-generate-readme, v0.6.0, on May 19, 2017.