@extra-array/prefixes

Lists all possible prefixes. 📦 😺 🏃 📼 🌔 📜 📰 📘

Similar: prefix, prefixes, hasPrefix.

This is part of package extra-array.

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

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