@silverwind/ioredis-mock/lib/commands/zrange.js

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

"use strict";

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

var _lodash = require("lodash");

var _zrangeCommand = require("./zrange-command.common");

function zrange(key, s, e, withScores) {
  const map = this.data.get(key);

  if (!map) {
    return [];
  } // @TODO investigate a more stable way to detect sorted lists


  if (this.data.has(key) && !(this.data.get(key) instanceof Map)) {
    return [];
  }

  const start = parseInt(s, 10);
  const end = parseInt(e, 10);
  const ordered = (0, _zrangeCommand.slice)((0, _lodash.orderBy)(Array.from(map.values()), ['score', 'value']), start, end);

  if (typeof withScores === 'string' && withScores.toUpperCase() === 'WITHSCORES') {
    return (0, _lodash.flatMap)(ordered, it => [it.value, it.score]);
  }

  return ordered.map(it => it.value);
}