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Javascript Switch

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js switch case

switch(expression) {
  case x:
    // code block
    break;
  case y:
    // code block
    break;
  default:
    // code block
}

switch JS

switch (expression) {
  case valeur1:
    // Instructions à exécuter lorsque le résultat
    // de l'expression correspond à valeur1
    instructions1;
    [break;]
  case valeur2:
    // Instructions à exécuter lorsque le résultat
    // de l'expression correspond à valeur2
    instructions 2;
    [break;]
  ...
  case valeurN:
    // Instructions à exécuter lorsque le résultat
    // de l'expression à valeurN
    instructionsN;
    [break;]
  [default:
    // Instructions à exécuter lorsqu'aucune des valeurs
    // ne correspond
    instructions_def;
    [break;]]
}
Source: developer.mozilla.org

switch javascript

var foo = 0;
switch (foo) {
  case -1:
    console.log('1 negativo');
    break;
  case 0: // foo es 0, por lo tanto se cumple la condición y se ejecutara el siguiente bloque
    console.log(0)
    // NOTA: el "break" olvidado debería estar aquí
  case 1: // No hay sentencia "break" en el 'case 0:', por lo tanto este caso también será ejecutado
    console.log(1);
    break; // Al encontrar un "break", no será ejecutado el 'case 2:'
  case 2:
    console.log(2);
    break;
  default:
    console.log('default');
}
Source: developer.mozilla.org

switch js

switch(expression) {
  case x:
    // code block
    break;
  default:
    // code block
}

switch js

switch (expr) {
  case 'Oranges':
    console.log('Oranges are $0.59 a pound.');
    break;
  case 'Apples':
    console.log('Apples are $0.32 a pound.');
    break;
  case 'Bananas':
    console.log('Bananas are $0.48 a pound.');
    break;
  case 'Cherries':
    console.log('Cherries are $3.00 a pound.');
    break;
  case 'Mangoes':
  case 'Papayas':
    console.log('Mangoes and papayas are $2.79 a pound.');
    break;
  default:
    console.log('Sorry, we are out of ' + expr + '.');
}

console.log("Is there anything else you'd like?");
Source: developer.mozilla.org

javascript switch

//javascript multiple case switch statement
var color = "yellow";
var darkOrLight="";
switch(color) {
    case "yellow":case "pink":case "orange":
        darkOrLight = "Light";
        break;
    case "blue":case "purple":case "brown":
        darkOrLight = "Dark";
        break;
    default:
        darkOrLight = "Unknown";
}

//darkOrLight="Light"

JavaScript Switch Statement

 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";
}     

console.log(day);

JavaScript Switch Statement

switch(variable/expression) {
    case value1:  
        // body of case 1
        break;

    case value2:  
        // body of case 2
        break;

    case valueN:
        // body of case N
        break;

    default:
        // body of default
}

javascript switch

let x = 3;

switch(x) {
  case 1:
    console.log("You entered 1");
    break;
  case 2:
    console.log("You entered 2");
    break;
  default:
    console.log("You entered: "+ x);
}

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