has-value

has-value

Returns true if a value exists, false if empty. Works for booleans, functions, numbers, strings, nulls, objects and arrays. Other libs do this, but I needed one that would optionally not treat zero as empty.

Install

Install with npm:

npm i has-value --save-dev

Run tests

npm test

Usage

var hasValue = require('has-value');

hasValue('a');
//=> true

hasValue('');
//=> false

hasValue(1);
//=> true

hasValue(0);
//=> false

hasValue(0, true); // treat zero as a value
//=> true

hasValue({a: 'a'}});
//=> true

hasValue({}});
//=> false

hasValue(['a']);
//=> true

hasValue([]);
//=> false

hasValue(function(foo) {}); // function length/arity
//=> true

hasValue(function() {});
//=> false

hasValue(true);
hasValue(false);
//=> true

Author

Jon Schlinkert

• github/jonschlinkert
• twitter/jonschlinkert

License

Copyright (c) 2014 Jon Schlinkert, contributors.
Released under the MIT license

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This file was generated by verb-cli on September 21, 2014.