partition

Segregate values by test result.

Alternatives: partition, partitionAs.

function partition(x, ft)
// x:  a set
// ft: test function (v, v, x)

const set = require('extra-set');

var x = new Set([1, 2, 3, 4]);
set.partition(x, v => v % 2 == 0);
// → [ Set(2) { 2, 4 }, Set(2) { 1, 3 } ]

var x = new Set([1, 2, 3, 4, 5]);
set.partition(x, v => v % 2 == 1);
// → [ Set(3) { 1, 3, 5 }, Set(2) { 2, 4 } ]

References

• Data.List.partition: Haskell