Challenge PlatziMaster#5 - Solved

Author: montycode

package-lock.json

@@ -4,7 +4,33 @@
  */
 
 const pascalTriangle = (lineNumber) => {
+    
+    let rowArray = [];  //  Creando la matríz del tríangulo
+    
+    if (lineNumber == 0) { // Exepción de 0
+        return rowArray = [1];
+      } if (lineNumber == 1) { // Exepción de 1
+        return rowArray = [1,1];
+      } else {
+        for (i = 0; i <= lineNumber; i++) { 
+            let top = factorial(lineNumber); // n!
+            let k = factorial(i); // k!
+            let n = factorial(lineNumber - i); // (n-k)!
+            let combination = k * n; // (k!(n-k)!)
+            rowArray[i] = top / combination; // n!/(k!(n-k)!)
+        }
+
+        return rowArray;
+      }
 
 }
 
+const factorial = (n) => {  // Función que determina el factoríal de un número
+    if (n === 0){  //Exepción de 0
+        return 1;
+    } 
+    
+    return n * factorial (n-1); 
+  };
+
 module.exports = pascalTriangle;