quick and dirty schema dirty checking for undeleteable websql databases

schema-dirty-check.js

import myDatabaseSchema from './myDatabaseSchema';
import runDBMigrations from './myMigrations';

const schemaHash = hash(myDatabaseSchema);
const lastSchemaHash = localStorage.getItem('lastSchemaHash');

if(lastSchemaHash !== null && lastSchemaHash !== schemaHash) {
  localStorage.setItem('lashSchemaHash', schemaHash);
  console.log('schema changed! the world was deleted!');
  runDBMigrations(lastSchemaHash, schemaHash);
}

myPouchRxdbOrOtherObjectDatabase.create(schemaHash);