empty_catches.md

Pattern: Use of empty catch

Issue: -

Description

In general, empty catch blocks should be avoided. In cases where they are intended, a comment should be provided to explain why exceptions are being caught and suppressed. Alternatively, the exception identifier can be named with underscores (e.g., _) to indicate that we intend to skip it.

Example of incorrect code:

try {
 ...
} catch(exception) { }

Example of correct code:

try {
 ...
} catch(e) {
 // ignored, really.
}

// Alternatively:
try {
 ...
} catch(_) { }

// Better still:
try {
 ...
} catch(e) {
 doSomething(e);
}

Further Reading

• Linter for Dart - empty_catches