Breaks array keeping similar values together. :package: :smiley_cat: :running: :vhs: :moon: :scroll: :newspaper: :blue_book:

Similar: cut, split, group.

This is part of package extra-array.

This is browserified, minified version of @extra-array/group. It is exported as global variable array_group. CDN: unpkg, jsDelivr.

array.group(x, [fc], [fm]);
// x:  an array
// fc: compare function (a, b)
// fm: map function (v, i, x)

const array = require("extra-array");

var x = [1, 2, 2, -2, -2, 4];
array.group(x);
// [ [ 1 ], [ 2, 2 ], [ -2, -2 ], [ 4 ] ]

array.group(x, (a, b) => Math.abs(a) - Math.abs(b));
// [ [ 1 ], [ 2, 2, -2, -2 ], [ 4 ] ]

array.group(x, null, v => Math.abs(v));
// [ [ 1 ], [ 2, 2, -2, -2 ], [ 4 ] ]

References

• Data.List.groupBy: Haskell
• List-Extra.group: elm
• List-Extra.groupWhile: elm