| export default function pairs(values, pairof = pair) { | |
| const pairs = []; | |
| let previous; | |
| let first = false; | |
| for (const value of values) { | |
| if (first) pairs.push(pairof(previous, value)); | |
| previous = value; | |
| first = true; | |
| } | |
| return pairs; | |
| } | |
| export function pair(a, b) { | |
| return [a, b]; | |
| } | |