searchInfix (original) (raw)

Find first index of an infix.

Alternatives: searchInfix, searchInfixRight, searchInfixAll.
Similar: hasInfix, searchInfix.
Similar: search, scan, find.

function searchInfix(x, y, fc, fm) // x: an array // y: search infix // fc: compare function (a, b) // fm: map function (v, i, x)

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

var x = [1, 2, 3, 4]; var y = [2, 3]; xarray.searchInfix(x, y); // → 1

var y = [-2, -3]; xarray.searchInfix(x, y); // → -1

xarray.searchInfix(x, y, (a, b) => Math.abs(a) - Math.abs(b)); // → 1

xarray.searchInfix(x, y, null, v => Math.abs(v)); // → 1

References

• Data.List.isInfixOf() : Haskell
• List-Extra.isInfixOf() : Elm