const array = require("extra-array");
var x = [1, 2, 3, 4];
var y = [2, 3];
array.searchInfixRight(x, y);
var y = [-2, -3];
array.searchInfixRight(x, y);
array.searchInfixRight(x, y, (a, b) =>Math.abs(a) - Math.abs(b));
array.searchInfixRight(x, y, null, v =>Math.abs(v));