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until transducer: reduce_sum_reduce
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| import { sum_of_every_element } from './sum_of_every_element' | |
| test('calculate the sum of all elements using reduce', () => { | |
| expect(sum_of_every_element([1, 2, 3])).toEqual(6) | |
| }) |
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| import { reduce } from 'ramda' | |
| export const sum_of_every_element = | |
| reduce( | |
| (previous: number, current: number) => previous + current, | |
| 0 | |
| ) |
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