Files
30-seconds-of-code/test/symmetricDifferenceBy.test.js
Christian C. Salvadó 83a6a6ea32 [ENHANCEMENT] Properly configure eslint to work with jest (#988)
* chore: make aware eslint that we use jest

By setting up the jest environment, we no longer need to declare the
'test' global in the configuration.

* chore: don't need to import expect, it's a jest environment global

* chore: don't need to import expect when creating undefined test
2019-06-18 08:34:45 +03:00

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JavaScript

const {symmetricDifferenceBy} = require('./_30s.js');
test('symmetricDifferenceBy is a Function', () => {
expect(symmetricDifferenceBy).toBeInstanceOf(Function);
});
test('Returns the symmetric difference between two arrays, after applying the provided function to each array element of both', () => {
expect(symmetricDifferenceBy([2.1, 1.2], [2.3, 3.4], Math.floor)).toEqual([1.2, 3.4]);
});