// loop over and execute statements in string sql
for (let statement of db.iterateStatements(sql) {
    statement.step();
    // get results, etc.
    // do not call statement.free() manually, each statement is freed
    // before the next one is parsed
}

// capture any bad query exceptions with feedback
// on the bad sql
let it = db.iterateStatements(sql);
try {
    for (let statement of it) {
        statement.step();
    }
} catch(e) {
    console.log(
        `The SQL string "${it.getRemainingSQL()}" ` +
        `contains the following error: ${e}`
    );
}