Hash tables are an important part of dynamic programming languages. They are widely used because of their flexibility, and their performance is important for the overall performance of numerous programs.
The “bug” comes up in a few contexts. The problem comes when an error is raised from within an ensure block from another source. If you don’t know how that’s possible keep reading, otherwise skip the next section.
A Domain Specific Language (DSL) is a specialized way to clearly describe a problem domain. Ruby is a great language for creating DSLs because it lets developers decide how the language looks and is used
A Product Manager friend of mine recently told me about problem she was having: “Software engineers can never estimate how long their projects will take. What can I do?” Two CEOs recently told me the same thing.
n software engineering, “refactoring” source code means modifying it without changing its behaviour, and is sometimes informally referred to as “cleaning it up”. Refactoring neither fixes bugs nor adds new functionality, though it might precede either activity.