Ruby - Exceptions.

Exceptions. - Ruby module R111

You can check for some, but not all, errors. It's sometimes necessary (and often preferable even if not necessary) to write clean code that assumes correct operation, and provide rescue blocks telling Ruby what to do in the event of a failure.

This topic is presented on public course Ruby Programming

Examples from our training material

bmi.rb	BMI (Body Mass Index) calculator
fsta.rb	File Reporter - assumes all is OK
fstb.rb	File Reporter - handle problems with open
fstc.rb	File Reporter - handle multiple problems and reprompt

Background information

Some modules are available for download as a sample of our material or under an Open Training Notes License for free download from http://www.training-notes.co.uk.

Topics covered in this module

begin and end (and a mention of BEGIN and END).
Raise and rescue.
Throw and catch.

Complete learning

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