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First solution in Clear category for [old] Zigzag Array by mozurin
"use strict";
function createZigzag(rows, cols, start=1)
{
return [...Array(rows).keys()].map(
r => [...Array(cols).keys()].map(c => r * cols + c + start)
).map(
(row, n) => n % 2? row.reverse() : row
);
}
April 9, 2019
