Seeing as C# can’t switch on a Type (which I gather wasn’t added as a special case because is relationships mean that more than one distinct case might apply), is there a better way to simulate switching on type other than this? void Foo(object o) { if (o is A) { ((A)o).Hop(); } else if … Read more
In my code, the program does something depending on the text entered by the user. My code looks like: switch (name) { case text1: { //blah break; } case text2: { //blah break; } case text3: { //blah break; } case text4: { //blah break; } However, the code inside cases text1 and text4 is … Read more
Switch statement fallthrough is one of my personal major reasons for loving switch vs. if/else if constructs. An example is in order here: static string NumberToWords(int number) { string[] numbers = new string[] { “”, “one”, “two”, “three”, “four”, “five”, “six”, “seven”, “eight”, “nine” }; string[] tens = new string[] { “”, “”, “twenty”, “thirty”, … Read more
This question already has answers here: Is there any significant difference between using if/else and switch-case in C#? (20 answers) Closed 2 years ago. I’m an ex Pascal guy, currently learning C#. My question is the following: Is the code below faster than making a switch? int a = 5; if (a == 1) { … Read more
This question already has answers here: Replacements for switch statement in Python? (44 answers) Closed 8 years ago. Is there a Python equivalent for the switch statement? 2 s 2
Is there a way to fall through multiple case statements without stating case value: repeatedly? I know this works: switch (value) { case 1: case 2: case 3: // Do some stuff break; case 4: case 5: case 6: // Do some different stuff break; default: // Default stuff break; } but I’d like to … Read more
I need multiple cases in switch statement in JavaScript, Something like: switch (varName) { case “afshin”, “saeed”, “larry”: alert(‘Hey’); break; default: alert(‘Default case’); break; } How can I do that? If there’s no way to do something like that in JavaScript, I want to know an alternative solution that also follows the DRY concept. 23 … Read more
Is this functionality going to be put into a later Java version? Can someone explain why I can’t do this, as in, the technical way Java’s switch statement works? 14 s 14 Switch statements with String cases have been implemented in Java SE 7, at least 16 years after they were first requested. A clear … Read more
I’ve always wondered this – why can’t you declare variables after a case label in a switch statement? In C++ you can declare variables pretty much anywhere (and declaring them close to first use is obviously a good thing) but the following still won’t work: switch (val) { case VAL: // This won’t work int … Read more
How do I write a switch statement in Ruby? 2 27 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 … Read more
