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x/rambda/source/init.spec.js

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import { init } from './init.js'
test('with array', () => {  expect(init([ 1, 2, 3 ])).toEqual([ 1, 2 ])  expect(init([ 1, 2 ])).toEqual([ 1 ])  expect(init([ 1 ])).toEqual([])  expect(init([])).toEqual([])  expect(init([])).toEqual([])  expect(init([ 1 ])).toEqual([])})
test('with string', () => {  expect(init('foo')).toBe('fo')  expect(init('f')).toBe('')  expect(init('')).toBe('')})