lodash-ex

Simple and useful utility extensions for Lodash.

Installation

  npm install @outofsync/lodash-ex

Usage

lodash-ex replaces and extends lodash, so it only the lodash-ex module needs to be included in your code:

  const _ = require('@outofsync/lodash-ex');

  const data = { a: 'a', b: 'b' };
  // Use lodash as you normally would
  console.log(_.pick(data, ['a']);

API Reference

_.isUnset(value) ⟾ boolean

Tests if the value provided is null or undefined

  _.isUnset(null);
  _.isUnset(undefined);
  _.isUnset(false);

Results:

  true
  true
  false

_.hasValue(value) ⟾ boolean

Tests if the value provided is not null or undefined

  _.hasValue(null);
  _.hasValue(undefined);
  _.hasValue(false);

Results:

  false
  false
  true

_.implies(a, b) ⟾ boolean

Test the logic imply operation a => b, providing the following truth table:

| A | B | Result | | - | - | ------ | | T | T | T | | T | F | F | | F | T | T | | F | F | T |

_.bool(value) ⟾ boolean

Coerces the value provided to a boolean value.

  _.bool(false);
  _.bool(0);
  _.bool(0.0);
  _.bool('');
  _.bool(null);
  _.bool(undefined);
  _.bool(true);
  _.bool(1);
  _.bool(3.14);
  _.bool('abcd');
  _.bool([]);
  _.bool({});
  _.bool(() => {}));

Results:

  false
  false
  false
  false
  false
  false
  true
  true
  true
  true
  true
  true
  true

License

Copyright (c) 2018,2019 Jay Reardon -- Licensed under the MIT license.