Question

How to use switch case statement in Node.js

Answer 1

function getText(lang) { 
    let text = "";
   
    switch(lang) {
        case "c":
            text = "c";
            break;
        case "nodejs":
            text = "nodejs";
            break;
        case "php":
            text = "php";
            break;
        default:
            text = "default";
    }
    return text;
}
    
console.log(getText("nodejs")); 
   
   
   
    
/*
run:
   
nodejs
   
*/

 

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Answer 2

function get_day() { 
   let day = "";
      
   switch (new Date().getDay()) {
        case 0:
            day = "Sunday";
            break;
        case 1:
            day = "Monday";
            break;
        case 2:
            day = "Tuesday";
            break;
        case 3:
            day = "Wednesday";
            break;
        case 4:
            day = "Thursday";
            break;
        case 5:
            day = "Friday";
            break;
        case 6:
            day = "Saturday";
            break;
        default:
            day = "default";
   }
   return day;
}
    
console.log(get_day()); 
  
  
  
    
/*
run:
   
Sunday
   
*/

 

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Answer 3

function get_value(n) { 
   let text;
     
   switch (n) {
      case 1:
      case 2:
      case 3:
            text = "n = 1 , 2 or 3";
            break;
      case 4:
      case 5:
            text = "n = 4 or 5";
            break;
      case 9:
      case 13:
            text = "n = 9 or 13";
            break;
      default:
            text = "default";
   }
   return text;
}
   
console.log(get_value(4)); 
  
  
  
   
/*
run:
  
n = 4 or 5
  
*/

 

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Answer 4

const n = 1;

switch (n) {
    case 0:
        console.log(0);
    case 1:
        console.log(1);
    case 2:
        console.log(2);
    case 3:
        console.log(3);
        break
    case 4:
        console.log(4);
        break;
    case 5:
        console.log(5);
        break;
  default:
        console.log("default");
}


  
  
  
   
/*
run:
  
1
2
3
  
*/

 

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