findRight - nodef/extra-array GitHub Wiki

Find last value passing a test.

Alternatives: find, findRight, findAll. Similar: search, scan, find.

function findRight(x, ft)
// x:  an array
// ft: test function (v, i, x)

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

var x = [1, 2, 3, 4, 5];
xarray.findRight(x, v => v % 2 == 0);
// → 4            ^

xarray.findRight(x, v => v % 2 == 1);
// → 5               ^

References