How to log exceptions in JavaScript

You don’t specify if you are working in the browser or the server. If it’s the former, there is a new console.error method and e.stack property:

try {
    // do some crazy stuff
} catch (e) {
    console.error(e, e.stack);
}

Please keep in mind that error will work on Firefox and Chrome, but it’s not standard. A quick example that will downgrade to console.log and log e if there is no e.stack:

try {
    // do some crazy stuff
} catch (e) {
    (console.error || console.log).call(console, e.stack || e);
}