searchInfixRight - nodef/extra-array GitHub Wiki

Find last index of an infix.

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

function searchInfixRight(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.searchInfixRight(x, y);
// → 1

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

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

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

References