02. Optional Catch

The shorthand syntax for catch expression will be available in ES2018:

try {
    ···
} catch {
    ···
}

There are two general reasons for omitting the catch binding:

• If you want to completely ignore the error.

• You don’t care about the error or you already know what it will be, but you do want to react to it.

let jsonData;
try {
  jsonData = JSON.parse(str); // (A)
} catch {
  jsonData = DEFAULT_DATA;
}