@zitterorg/upgraded-fishstick NPM | npm.io

2.11.83 • Published 5 months ago

Install

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License

MIT

Repository

Last release

5 months ago

@zitterorg/upgraded-fishstick

Are these two values conceptually equal?

Example

var isEqual = require('@zitterorg/upgraded-fishstick');
var assert = require('assert');

var primitives = [true, false, undefined, 42, 'foo'];
primitives.forEach(function (primitive) {
	assert.equal(isEqual(primitive, primitive), true);
});
assert.equal(isEqual(/a/g, /a/g), true);
assert.equal(isEqual(/a/g, new RegExp('a', 'g')), true);
assert.equal(isEqual({ a: 2 }, { a: 2 }), true);
assert.equal(isEqual([1, [2, 3], 4], [1, [2, 3], 4]), true);
var timestamp = Date.now();
assert.equal(isEqual(new Date(timestamp), new Date(timestamp)), true);

Want to know why two values are not equal?

Will return an empty string if isEqual would return true - otherwise will return a non-empty string that hopefully explains the reasoning.

var whyNotEqual = require('@zitterorg/upgraded-fishstick/why');

assert.equal(whyNotEqual(1, 1), '');
assert.equal(
  whyNotEqual({ a: 1 }, { a: 2 }),
  'value at key "a" differs: numbers are different: 1 !== 2'
);

Tests

Simply clone the repo, npm install, and run npm test

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