Reto Cumplido Ethereum Program Platzi

src/factorial.js

@@ -1,5 +1,11 @@
 const factorial = (number) => {
-  // your code here
+  var resultado = number;
+  if (number === 0 || number === 1) 
+    return 1; 
+  while (number > 1) { 
+    number--;
+    result *= number;
+  }
+  return resultado;
 }
-
-module.exports = factorial;
+module.exports = factorial;

src/fibonacci.js

@@ -1,5 +1,10 @@
 const fibonacci = (n) => {
-  // your code here
+  let fib = [1, 1]; 
+    if (n == 1) { fib =[1]; }
+    if (n <= 2) { return fib.slice(0, n); }
+    for (let i = 2; i < n; i++) {
+      fib[i] = fib[i - 1] + fib[i - 2]; 
+    }
+    return fib;
 }
-
-module.exports = fibonacci;
+module.exports = fibonacci;

src/primalidad.js

@@ -1,5 +1,23 @@
-const trialDivision = (number) => {
-  // your code here
+const trialDivision = (number) => {  
+  var esReal;
+  esReal = !(Number.isInteger(number));
+  if (esReal == true) {
+    number=Math.floor(number);
+  }
+  if (number <= 1) {
+    return false;
+  }
+  if (number === 2 || number === 3) {
+    return true;
+  }
+  if (number % 2 === 0 || number % 3 === 0) {
+    return false;
+  }
+  for (let i = 5; i <= Math.sqrt(number); i += 6) {
+    if (number % i === 0 || number % (i + 2) === 0) {
+      return false;
+    }
+  }
+  return true;
 }
-
-module.exports = trialDivision;
+module.exports = trialDivision;