const unique = require('@wareset/unique');
// or
import unique from '@wareset/unique';

let arr = [0, 1, 2, 3, 1, 2, 3, '', null, undefined];

console.log(arr.filter(unique)), /* OR */ console.log(unique(arr));
/* RETURN: */ [0, 1, 2, 3];

// because filter (bind) by default ['', null, undefined];

console.log(arr.filter(unique.bind([1, 2])));
/* RETURN: */ [0, 3, '', null, undefined];

arr = ['foo', 'bar', 'baz'];

console.log(arr.filter(unique.bind([/^ba/])));
/* RETURN: */ ['foo'];