Merge pull request #4284 from jmedinac1987/main

Reto #30 - Javascript

Retos/Reto #30 - EL TECLADO T9 [Media]/javascript/jmedinac1987.js

@@ -0,0 +1,62 @@
+function validateNumberBlock(numberBlock) {
+  if (numberBlock.length == 0) return false;
+
+  let regex = /^[0-9-]+$/;
+  let theNumberBlockHasOnlyNumbersAndHyphens = regex.test(numberBlock);
+
+  if (!theNumberBlockHasOnlyNumbersAndHyphens) return false;
+
+  let arrayNumberBlock = [];
+  let isNumberBlockValid = true;
+
+  arrayNumberBlock = numberBlock.trim().split("-");
+
+  arrayNumberBlock.forEach((element) => {
+    let arrayElement = element.split("");
+    if (arrayElement.length >= 2) {
+      for (let i = 0; i < arrayElement.length; i++) {
+        if (typeof arrayElement[i + 1] === "undefined") {
+          if (arrayElement[i] != arrayElement[i - 1]) {
+            isNumberBlockValid = false;
+            break;
+          }
+        } else if (arrayElement[i] != arrayElement[i + 1]) {
+          isNumberBlockValid = false;
+          break;
+        }
+      }
+    }
+  });
+
+  return { TrueOrFalse: isNumberBlockValid, ArrayTest: arrayNumberBlock };
+}
+
+function decodeMessage(numberBlock) {
+  let responseValidateNumberBlock = validateNumberBlock(numberBlock);
+  if (!responseValidateNumberBlock.TrueOrFalse)
+    return "We're sorry, but your number block is invalid";
+
+  let message = "";
+  const decode = {
+    2: "a",    22: "b",    222: "c",
+    3: "d",    33: "e",    333: "f",
+    4: "g",    44: "h",    444: "i",
+    5: "j",    55: "k",    555: "l",
+    6: "m",    66: "n",    666: "o",
+    7: "p",    77: "q",    777: "r",    7777: "s",
+    8: "t",    88: "u",    888: "v",
+    9: "w",    99: "x",    999: "y",    9999: "z",
+  };
+
+  responseValidateNumberBlock.ArrayTest.forEach((element) => {
+    if (typeof decode[element] === "undefined"){        
+        message += " ";        
+    } else {
+        message += decode[element];
+    }    
+  });
+
+  return message.toUpperCase();
+}
+
+console.log(decodeMessage("6-666-88-777-33-3-33-888"));