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Sample using Promise.catch()
doSomeDatabaseWork().then(result => {
// Success
}).catch('UnsupportedError', e => {
// Failed with UnsupportedError
console.error ("Unsupported error: " + e.message);
}).catch(Error, e => {
// Any other error derived from standard Error
console.error ("Error: " + e.message);
}).catch(e => {
// Other error such as a string was thrown
console.error (e);
});