prefixes

Lists all possible prefixes. [:running:] [:package:] [:moon:]

array.prefixes(x, [n]);
// x: an array
// n: number of values (-1 => any)
// --> ...prefixes

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

[...array.prefixes([1, 2])];
// [ [], [ 1 ], [ 1, 2 ] ]

[...array.prefixes([1, 2, 3])];
// [ [], [ 1 ], [ 1, 2 ], [ 1, 2, 3 ] ]

references

• Data.List.inits(): Haskell [:running:]: https://npm.runkit.com/@extra-array/prefixes [:package:]: https://www.npmjs.com/package/@extra-array/prefixes [:moon:]: https://www.npmjs.com/package/@extra-array/prefixes.min