freeCodeCamp/curriculum/challenges/spanish/02-javascript-algorithms-and-data-structures/basic-javascript/replacing-if-else-chains-with-switch.spanish.md

id, title, localeTitle, challengeType

id	title	localeTitle	challengeType
56533eb9ac21ba0edf2244e0	Replacing If Else Chains with Switch	Reemplazo de cadenas de otro tipo con interruptor	1

Description

Si tiene muchas opciones para elegir, una instrucción switch puede ser más fácil de escribir que muchas instrucciones encadenadas if / else if . Lo siguiente:

if (val === 1) {
  answer = "a";
} else if (val === 2) {
  answer = "b";
} else {
  answer = "c";
}

puede ser reemplazado por:

switch(val) {
  case 1:
    answer = "a";
    break;
  case 2:
    answer = "b";
    break;
  default:
    answer = "c";
}

Instructions

Cambie las sentencias if / else if encadenadas en una sentencia switch .

Tests

tests:
  - text: No debe utilizar ninguna <code>else</code> declaración en ningún lugar del editor.
    testString: 'assert(!/else/g.test(code), "You should not use any <code>else</code> statements anywhere in the editor");'
  - text: No debe utilizar ninguna sentencia <code>if</code> en ningún lugar del editor.
    testString: 'assert(!/if/g.test(code), "You should not use any <code>if</code> statements anywhere in the editor");'
  - text: Debe tener al menos cuatro declaraciones de <code>break</code>
    testString: 'assert(code.match(/break/g).length >= 4, "You should have at least four <code>break</code> statements");'
  - text: <code>chainToSwitch(&quot;bob&quot;)</code> debe ser &quot;Marley&quot;
    testString: 'assert(chainToSwitch("bob") === "Marley", "<code>chainToSwitch("bob")</code> should be "Marley"");'
  - text: <code>chainToSwitch(42)</code> debe ser &quot;La Respuesta&quot;
    testString: 'assert(chainToSwitch(42) === "The Answer", "<code>chainToSwitch(42)</code> should be "The Answer"");'
  - text: &#39; <code>chainToSwitch(1)</code> debe ser &quot;No hay # 1&quot;&#39;
    testString: 'assert(chainToSwitch(1) === "There is no #1", "<code>chainToSwitch(1)</code> should be "There is no #1"");'
  - text: <code>chainToSwitch(99)</code> debería ser &quot;¡Me <code>chainToSwitch(99)</code> por esto!&quot;
    testString: 'assert(chainToSwitch(99) === "Missed me by this much!", "<code>chainToSwitch(99)</code> should be "Missed me by this much!"");'
  - text: <code>chainToSwitch(7)</code> debe ser &quot;Ate Nine&quot;
    testString: 'assert(chainToSwitch(7) === "Ate Nine", "<code>chainToSwitch(7)</code> should be "Ate Nine"");'
  - text: <code>chainToSwitch(&quot;John&quot;)</code> debe ser &quot;&quot; (cadena vacía)
    testString: 'assert(chainToSwitch("John") === "", "<code>chainToSwitch("John")</code> should be "" (empty string)");'
  - text: <code>chainToSwitch(156)</code> debe ser &quot;&quot; (cadena vacía)
    testString: 'assert(chainToSwitch(156) === "", "<code>chainToSwitch(156)</code> should be "" (empty string)");'

Challenge Seed

function chainToSwitch(val) {
  var answer = "";
  // Only change code below this line

  if (val === "bob") {
    answer = "Marley";
  } else if (val === 42) {
    answer = "The Answer";
  } else if (val === 1) {
    answer = "There is no #1";
  } else if (val === 99) {
    answer = "Missed me by this much!";
  } else if (val === 7) {
    answer = "Ate Nine";
  }

  // Only change code above this line
  return answer;
}

// Change this value to test
chainToSwitch(7);

Solution

function chainToSwitch(val) {
  var answer = "";

  switch(val) {
    case "bob":
      answer = "Marley";
      break;
    case 42:
      answer = "The Answer";
      break;
    case 1:
      answer = "There is no #1";
      break;
    case 99:
      answer = "Missed me by this much!";
      break;
    case 7:
      answer = "Ate Nine";
  }
  return answer;
}