@extra-iterable/scan-until NPM | npm.io

2.5.22 • Published 4 years ago

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32

License

MIT

Repository

Last release

4 years ago

Scans from left, until a test passes. :package: :smiley_cat: :running: :vhs: :moon: :scroll: :newspaper: :blue_book:

Alternatives: scanWhile, scanWhileRight, scanUntil, scanUntilRight. Similar: search, scan, find.
This is part of package extra-iterable.

iterable.scanUntil(x, ft);
// x:  an iterable
// ft: test function (v, i, x)
// → index where test passes

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

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

iterable.scanUntil(x, v => v % 3 === 0);
// 4                 ^

iterable.scanUntil(x, v => v % 6 === 0);
// 8                            ^

References

extra iterable scan until scanUntil

@infinitebrahmanuniverse/nolb-_extra-i @zalastax/nolb-_extra-i

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