switch-statement Questions

13

Solved

how do i switch on an enum which have the flags attribute set (or more precisely is used for bit operations) ? I want to be able to hit all cases in a switch that matches the values declared. The...
Princely asked 24/6, 2009 at 20:18

2

I have found some strange behaviors trying to check the runtime type of some objects in Dart. Let's make a simple example: main(List<String> args) { List<Map> l1 = new List<Map>...
Forecast asked 13/7, 2016 at 14:16

9

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I'm currently taking the code academy course on Javascript and I'm stuck on the FizzBuzz task. I need to count from 1-20 and if the number is divisible by 3 print fizz, by 5 print buzz, by both pri...
Shreveport asked 24/9, 2014 at 14:42

3

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I use Bootstrap 5 and I wand to use a switch-toggle. I don't want to use any other addons, but only with bootstrap. How to put a Text BEFORE the toggle switch. This does not work: <div class=&qu...
Duer asked 11/3, 2021 at 11:35

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I'm trying to write a code that has a lot of comparison Write a program in “QUANT.C” which “quantifies” numbers. Read an integer “x” and test it, producing the following output: x greater th...
Histo asked 7/1, 2014 at 12:59

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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[] numbe...
Achromat asked 6/10, 2008 at 13:0

5

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In Javascript, is there a way to achieve something similar to this ? const databaseObjectID = "someId"; // like "product/217637" switch(databaseObjectID) { case includes('product'): actionOnProd...
Obe asked 15/4, 2017 at 7:29

5

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I found a link to have a 'switch' tag in Django templates, but I was wondering if this can be somehow achieved without it. Using only the stuff which comes with Django? Basically is there other way...
Longdistance asked 7/4, 2009 at 13:43

4

Hello Guys, I hope you are doing well! I got a question, it's how to use switch case on a class? (Here the 'state' is the main class, and other classes are inherited from state.) like for example, ...
Restriction asked 23/8, 2022 at 23:50

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I'm writing some code that looks like this: while(true) { switch(msg->state) { case MSGTYPE: // ... break; // ... more stuff ... case DONE: break; // **HERE, I want to break out of the l...
Gayn asked 14/9, 2009 at 6:51

1

Set up: Similar to this question on a MSDN forum, I have a measure that switches between various other measures (some of them much more complex than others). The measure looks like this (my actual ...
Skirl asked 14/5, 2020 at 19:8

6

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How do I use a character in a switch-case? I will be getting the first letter of whatever the user inputs. import javax.swing.*; public class SwitchCase { public static void main (String[] args) ...
Chrysanthemum asked 2/8, 2011 at 0:23

4

I have a laptop with Windows 10 2004 installed. I configureded Hyper-V and created two VMs: On one VM runs windows 10 to enclose serveral malware IM softwares which I have to use for working contac...
Brochure asked 17/8, 2020 at 10:27

5

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I just learned that a switch statement can't use non-constant conditions. Which is fine and all, I get it. But does that really mean I have to make a big if-else block? It's so ugly I'm crying. So...
Kochi asked 20/12, 2015 at 23:52

5

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Suppose there is the following code: private static int DoSwitch(string arg) { switch (arg) { case "a": return 0; case "b": return 1; case "c": return 2; case "d": return 3; } return -1; }...
Marnamarne asked 23/7, 2012 at 17:4

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In one of my first code reviews (a while back), I was told that it's good practice to include a default clause in all switch statements. I recently remembered this advice but can't remember what th...
Eberly asked 10/1, 2011 at 17:13

3

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void menu() { print(); Scanner input = new Scanner( System.in ); while(true) { String s = input.next(); switch (s) { case "m": print(); continue; case "s": stat(); break; case "[A-Z]{1}[a-z...
Maryjanemaryjo asked 11/11, 2011 at 0:41

14

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I have several switch statements which test an enum. All enum values must be handled in the switch statements by a case statement. During code refactoring it can happen that the enum shrinks and gr...
Haas asked 28/5, 2013 at 16:57

11

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Worrying about my web application's performances, I am wondering which of "if/else" or switch statement is better regarding performance?
Pharmacopsychosis asked 18/1, 2010 at 14:9

11

I have this piece of code in C++ and i want to know how can i write some codes that replace switch statement in Lua because i face many problems and i need to use this statement. int choice; do // ...
Glyph asked 25/5, 2016 at 21:12

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I am a programming student in my second OOP class. Is it possible have Boolean conditions in switch statements? Example: switch(userInputtedInt) { case >= someNum && <= someOtherNum ...
Chadd asked 19/1, 2010 at 15:52

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I'm trying to initialize two variables with an enhanced switch statement: int num = //something boolean val1; String val2; val1, val2 = switch(num) { case 0 -> (true, "zero!"); case 1 ->...
Selfmortification asked 12/2, 2020 at 0:1

7

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I have four components imported in my react app. How can i render one of the component conditionally (based on props). This is what i'm trying to do <ReactSVGPanZoom //switch(this.props.Select...
Messy asked 27/1, 2018 at 14:58

8

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I'm learning syntax of Swift and wonder, why the following code isn't working as I expect it to: for i in 1...100{ switch (i){ case 1: Int(i%3) == 0 println("Fizz") case 2: Int(i%5) == 0 p...
Whimwham asked 13/8, 2014 at 5:57

5

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In PHP, how is variable scope handled in switch statements? For instance, take this hypothetical example: $someVariable = 0; switch($something) { case 1: $someVariable = 1; break; case 2: ...
Talavera asked 21/2, 2010 at 15:0

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