npx-run/iterables.js

Easily run scripts using npx.

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.groups = groups;
exports.headTail = headTail;

function* groups(items, split) {
  let collected = [];

  for (const item of items) {
    if (split(item)) {
      yield collected;
      collected = [];
    }

    collected.push(item);
  }

  if (collected.length) {
    yield collected;
  }
}

function* headTail(iterable) {
  const iter = iterable[Symbol.iterator]();
  const {
    value
  } = iter.next();
  yield value;
  yield iter;
}