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import { curry } from './curry.js'
function _includesWith(  pred, x, list){  let idx = 0  const len = list.length
  while (idx < len){    if (pred(x, list[ idx ]))      return true
    idx += 1  }
  return false}function _filter(fn, list){  let idx = 0  const len = list.length  const result = []
  while (idx < len){    if (fn(list[ idx ]))      result[ result.length ] = list[ idx ]
    idx += 1  }
  return result}
export function innerJoinFn(  pred, xs, ys){  return _filter(x => _includesWith(    pred, x, ys  ), xs)}
export const innerJoin = curry(innerJoinFn)