Segregates values by test result.
Alternatives: partition, partitionAs.
Similar: count, partition.
This is part of package extra-array.
This is browserified, minified version of @extra-array/partition.
It is exported as global variable array_partition.
CDN: unpkg, jsDelivr.
array.partition(x, ft);
// x: an array
// ft: test function (v, i, x)
// → [satisfies, doesnt]const array = require("extra-array");
var x = [1, 2, 3, 4];
array.partition(x, v => v % 2 == 0);
// [ [ 2, 4 ], [ 1, 3 ] ]
var x = [1, 2, 3, 4, 5];
array.partition(x, v => v % 2 == 1);
// [ [ 1, 3, 5 ], [ 2, 4 ] ]