Dart Academy · Lesson

on Clauses and Exception Types

Catch specific errors precisely.

Not All Errors Are Equal

A file error and a format error are different problems. Dart lets you catch them by type so each gets the right response. 🎯

Use on to catch only one exception type. The block runs solely when that specific kind of error is thrown.

try {
  parse();
} on FormatException {
  print('Bad format');
}