complete ex 2.js

Author: fatimarouchi

Sprint-3/1-key-errors/2.js

@@ -1,20 +1,21 @@
-
 // Predict and explain first BEFORE you run any code...
 
 // this function should square any number but instead we're going to get an error
 
 // =============> // I predict a SyntaxError because 3 is a number, but a function parameter needs to be a name.
 
-function square(3) {
+/*function square(3) {
     return num * num;
 }
+*/
+// =============> SyntaxError: Unexpected number
 
-// =============> write the error message here
-
-// =============> explain this error message here
+// =============> The error happens because 3 is not a name. A parameter needs a name, like num.
 
 // Finally, correct the code to fix the problem
 
 // =============> write your new code here
-
-
+function square(num) {
+  return num * num;
+}
+console.log(square(3));