rambdax/src/count.js

Extended version of Rambda - a lightweight, faster alternative to Ramda

import { isArray } from './_internals/isArray.js'

export function count(predicate, list){
  if (arguments.length === 1){
    return _list => count(predicate, _list)
  }
  if (!isArray(list)) return 0

  return list.filter(x => predicate(x)).length
}