cutRight

Break iterable after test passes.

Alternatives: cut, cutRight, cutAt, cutAtRight.
Similar: cut, split, group.

function cutRight(x, ft)
// x:  an iterable
// ft: test function (v, i, x)

const xiterable = require('extra-iterable');

var x = [1, 2, 3, 4, 5];
[...xiterable.cutRight(x, v => v % 2 === 0)];
// → [[1, 2], [3, 4], [5]]

[...xiterable.cutRight(x, v => v % 2 === 1)];
// → [[1], [2, 3], [4, 5], []]

References

• Data.List.splitAt: Haskell
• numpy.split: Python