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export function splitWhen(predicate, input) {  if (arguments.length === 1) {    return _input => splitWhen(predicate, _input)  }  if (!input)    throw new TypeError(`Cannot read property 'length' of ${input}`)
  const preFound = []  const postFound = []  let found = false  let counter = -1
  while (counter++ < input.length - 1) {    if (found) {      postFound.push(input[counter])    } else if (predicate(input[counter])) {      postFound.push(input[counter])      found = true    } else {      preFound.push(input[counter])    }  }
  return [preFound, postFound]}