When should you use try/catch in JavaScript?

Question

When I\'m developing normal web application with JavaScript, the try/catch statement is not needed usually. There\'s no checked exception, File IO or database conne

Answer 1

External Javascript libraries and widgets often make use of exceptions for instantiation errors. It's common to need to:

try {
  var w = new Widget();
}
catch (e) {
  // widget failed
}