iterama/web/zip.js

Composable functional (async) iterable helpers

import _defineProperty from "@babel/runtime/helpers/esm/defineProperty";
export function zip() {
  for (var _len = arguments.length, iterables = new Array(_len), _key = 0; _key < _len; _key++) {
    iterables[_key] = arguments[_key];
  }

  return _defineProperty({}, Symbol.iterator, function* () {
    var iterators = iterables.map(function (i) {
      return i[Symbol.iterator]();
    });

    try {
      while (true) {
        var values = iterators.map(function (i) {
          return i.next();
        });

        if (values.some(function (v) {
          return v.done;
        })) {
          break;
        }

        yield values.map(function (v) {
          return v.value;
        });
      }
    } finally {
      iterators.forEach(function (i) {
        var _i$return;

        return (_i$return = i.return) === null || _i$return === void 0 ? void 0 : _i$return.call(i);
      });
    }
  });
}
//# sourceMappingURL=zip.js.map