splitAt - nodef/extra-iterable GitHub Wiki

Break iterable considering indices as separator.

Alternatives: split, splitAt. Similar: cut, split, group.

function splitAt(x, is)
// x:  an iterable
// is: indices (sorted)
const xiterable = require('extra-iterable');

var x = [1, 2, 2, 3, 5, 4, 4, 7];
[...xiterable.splitAt(x, [1, 2, 5, 6])];
// → [1], [3, 5], [7](/nodef/extra-iterable/wiki/1],-[3,-5],-[7)

var x = [2, 4, 5, 6, 8];
[...xiterable.splitAt(x, [0, 1, 3, 4])];
// → [5](/nodef/extra-iterable/wiki/5)

References