# isSc2RealmValidForRegionId
Checks if provided StarCraft II realm is valid for given region ID.
It throws RangeError
if StarCraft II realm or region ID is non-existent or invalid.
const { BlizzAPI } = require('blizzapi');
console.log(BlizzAPI.isSc2RealmValidForRegionId(1, 1));
// true
console.log(BlizzAPI.isLocaleValidForRegionId(5, 2));
// false
console.log(BlizzAPI.isLocaleValidForRegionId(55, 2));
// RangeError: 55 is not a valid sc2Realm parameter for isSc2RealmValidForRegionId()
console.log(BlizzAPI.isLocaleValidForRegionId(1, 55));
// RangeError: 55 is not a valid regionId parameter for isSc2RealmValidForRegionId()