@extra-iterable/find-indices

Finds indices of values passing a test. :running: :vhs: :package: :moon: :ledger:

Alternatives: findIndex, findIndices.
Similar: find, findIndex.
This is part of package extra-iterable.

iterable.findIndices(x, fn, [ths]);
// x:   an iterable
// fn:  test function (v, i, x)
// ths: this argument

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

var x = [1, 2, 3, 4, 5];
[...iterable.findIndices(x, v => v % 2 == 0)];
// [ 1, 3 ] ^     ^

[...iterable.findIndices(x, v => v % 2 == 1)];
// [ 0, 2, 4 ] ^     ^

references

• Data.List.findIndices: Haskell
• List-Extra.findIndices: elm