Python 3.10 and above In Python 3.10, they introduced the pattern matching. Example from the Python documentation: def http_error(status): match status: case 400: return “Bad request” case 404: return “Not found” case 418: return “I’m a teapot” # If an exact match is not confirmed, this last case will be used if provided case _: … Read more
I guess this has been already answered. However, I think that you can still mix both options in a syntactically better way by doing: switch (value) { case 1: case 2: case 3: // Do Something break; case 4: case 5: case 6: // Do Something break; default: // Do Something break; }
Switch statements with String cases have been implemented in Java SE 7, at least 16 years after they were first requested. A clear reason for the delay was not provided, but it likely had to do with performance. Implementation in JDK 7 The feature has now been implemented in javac with a “de-sugaring” process; a … Read more
Use the fall-through feature of the switch statement. A matched case will run until a break (or the end of the switch statement) is found, so you could write it like: switch (varName) { case “afshin”: case “saeed”: case “larry”: alert(‘Hey’); break; default: alert(‘Default case’); }
Case statements are only labels. This means the compiler will interpret this as a jump directly to the label. In C++, the problem here is one of scope. Your curly brackets define the scope as everything inside the switch statement. This means that you are left with a scope where a jump will be performed … Read more
The original answer below was written in 2008. Since then, Python 3.10 (2021) introduced the match–case statement which provides a first-class implementation of a “switch” for Python. For example: def f(x): match x: case ‘a’: return 1 case ‘b’: return 2 case _: return 0 # 0 is the default case if x is not … Read more
Ruby uses the case expression instead. case x when 1..5 “It’s between 1 and 5” when 6 “It’s 6” when “foo”, “bar” “It’s either foo or bar” when String “You passed a string” else “You gave me #{x} — I have no idea what to do with that.” end Ruby compares the object in the … Read more