ioredis-mock/lib/commands/sinter.js

This library emulates ioredis by performing all operations in-memory.

'use strict';

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

var _arrayFrom = require('array-from');

var _arrayFrom2 = _interopRequireDefault(_arrayFrom);

var _es6Set = require('es6-set');

var _es6Set2 = _interopRequireDefault(_es6Set);

var _index = require('./index');

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function sinter() {
  var _this = this;

  for (var _len = arguments.length, keys = Array(_len), _key = 0; _key < _len; _key++) {
    keys[_key] = arguments[_key];
  }

  var values = _index.sunion.apply(this, keys);
  var sets = keys.map(function (key) {
    return _this.data.has(key) ? _this.data.get(key) : new _es6Set2.default();
  });

  var intersection = new _es6Set2.default(values.filter(function (value) {
    return sets.reduce(function (isShared, set) {
      return set.has(value) ? isShared : false;
    },
    /* isShared */true);
  }));

  return (0, _arrayFrom2.default)(intersection);
}