Finds first index of an infix. :package: :smiley_cat: :running: :vhs: :moon: :scroll: :newspaper: :blue_book:

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

This is part of package extra-array.

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

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

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

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

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

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

References

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