then catch finally code example

Example 1: try catch finally in javascript

try { // Try to run this code
  alert( 'try' ); 
  if (confirm('Make an error?')) BAD_CODE();
} catch (e) { // Code throws error
  alert( 'catch' );
} finally { // Always run this code regardless of error or not
  alert( 'finally' );
}

Example 2: try catch finally in javascript

try {
  alert( 'try' );
  if (confirm('Make an error?')) BAD_CODE();
} catch (e) {
  alert( 'catch' );
} finally {
  alert( 'finally' );
}