Passing additional parameters in higher-order functions

Answer 1

you want to curry your function like so :-

const samples = ["foo", "bar"];

const exclude = function(s) {
  return item => item !== s;
}

const foos = samples.filter(exclude("foo"));
console.log(foos)

excludeFoos returns a function for filtering. Many functional languages auto curry functions for you so you can do partial application

Note, it is easier to embrace something like Ramda for js which is built around these concepts and allows you to pipe collections / filters etc