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prefixes
Subhajit Sahu edited this page May 3, 2023
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19 revisions
Obtain all possible prefixes.
Alternatives: iprefixes, prefixes.
Similar: randomPrefix, prefixes, hasPrefix.
function prefixes(x, n)
// x: an array
// n: number of values [-1 ⇒ any]const xarray = require('extra-array');
xarray.prefixes([1, 2]);
// → [ [], [ 1 ], [ 1, 2 ] ]
xarray.prefixes([1, 2, 3]);
// → [ [], [ 1 ], [ 1, 2 ], [ 1, 2, 3 ] ]