@react-native-firebase/app/lib/internal/web/memidb/FDBKeyRange.js

A well tested, feature rich Firebase implementation for React Native, supporting iOS & Android. Individual module support for Admob, Analytics, Auth, Crash Reporting, Cloud Firestore, Database, Dynamic Links, Functions, Messaging (FCM), Remote Config, Sto

import cmp from './lib/cmp.js';
import { DataError } from './lib/errors.js';
import valueToKey from './lib/valueToKey.js';

// http://www.w3.org/TR/2015/REC-IndexedDB-20150108/#range-concept
class FDBKeyRange {
  static only(value) {
    if (arguments.length === 0) {
      throw new TypeError();
    }
    value = valueToKey(value);
    return new FDBKeyRange(value, value, false, false);
  }
  static lowerBound(lower, open = false) {
    if (arguments.length === 0) {
      throw new TypeError();
    }
    lower = valueToKey(lower);
    return new FDBKeyRange(lower, undefined, open, true);
  }
  static upperBound(upper, open = false) {
    if (arguments.length === 0) {
      throw new TypeError();
    }
    upper = valueToKey(upper);
    return new FDBKeyRange(undefined, upper, true, open);
  }
  static bound(lower, upper, lowerOpen = false, upperOpen = false) {
    if (arguments.length < 2) {
      throw new TypeError();
    }
    const cmpResult = cmp(lower, upper);
    if (cmpResult === 1 || (cmpResult === 0 && (lowerOpen || upperOpen))) {
      throw new DataError();
    }
    lower = valueToKey(lower);
    upper = valueToKey(upper);
    return new FDBKeyRange(lower, upper, lowerOpen, upperOpen);
  }
  constructor(lower, upper, lowerOpen, upperOpen) {
    this.lower = lower;
    this.upper = upper;
    this.lowerOpen = lowerOpen;
    this.upperOpen = upperOpen;
  }

  // https://w3c.github.io/IndexedDB/#dom-idbkeyrange-includes
  includes(key) {
    if (arguments.length === 0) {
      throw new TypeError();
    }
    key = valueToKey(key);
    if (this.lower !== undefined) {
      const cmpResult = cmp(this.lower, key);
      if (cmpResult === 1 || (cmpResult === 0 && this.lowerOpen)) {
        return false;
      }
    }
    if (this.upper !== undefined) {
      const cmpResult = cmp(this.upper, key);
      if (cmpResult === -1 || (cmpResult === 0 && this.upperOpen)) {
        return false;
      }
    }
    return true;
  }
  toString() {
    return '[object IDBKeyRange]';
  }
}
export default FDBKeyRange;