Bootstrapping your first Angular 2+ app

https://toddmotto.com/bootstrap-angular-2-hello-world

Oracle XE expired password

sqlplus /nolog
SQL> connect / as SYSDBA
Connected
SQL>


select username, account_status from dba_users where ACCOUNT_STATUS LIKE '%EXPIRED%';

ALTER USER theusername IDENTIFIED BY thepassword;

ALTER USER theusername ACCOUNT UNLOCK;

Javascript: From callback to Promise

const fetch = (url, options = {method:'get'}) => new Promise((resolve, reject) => {
    let request = new XMLHttpRequest();
    request.onload = resolve
    request.onerror = reject;
    request.open(options.method, url, true);
    request.send();
});