searchRight (original) (raw)
Find index of last value passing a test.
Alternatives: search, searchRight, searchAll.
Similar: search, scan, find.
function searchRight(x, ft) // x: an array // ft: test function (v, i, x)
const xarray = require('extra-array');
var x = [1, 2, 3, 2, 5]; xarray.searchRight(x, 2); // → 3 ^
var x = [1, 2, 3, -2, 5]; xarray.searchRight(x, 2, (a, b) => Math.abs(a) - Math.abs(b)); // → 3 ^
xarray.searchRight(x, 2, null, v => Math.abs(v)); // → 3 ^