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import { reject } from './reject.js'
const isOdd = n => n % 2 === 1
test('with array', () => {  expect(reject(isOdd)([ 1, 2, 3, 4 ])).toEqual([ 2, 4 ])})
test('with object', () => {  const obj = {    a : 1,    b : 2,    c : 3,    d : 4,  }  expect(reject(isOdd, obj)).toEqual({    b : 2,    d : 4,  })})