fix the problem

Author: shirinpanahian

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

@@ -1,20 +1,27 @@
-
 // Predict and explain first BEFORE you run any code...
+// when we run the code, I predict that we will got the error in function argument
+//because it is not a variable
 
 // this function should square any number but instead we're going to get an error
 
 // =============> write your prediction of the error here
+//
 
-function square(3) {
+/*function square(3) {
     return num * num;
-}
+}*/
 
 // =============> write the error message here
+// SyntaxError: Unexpected number
 
 // =============> explain this error message here
+// The error occurs because 3 is a number, not a valid variable name.
 
 // Finally, correct the code to fix the problem
 
 // =============> write your new code here
-
-
+const num = 3;
+function square(num) {
+  return num * num;
+}
+console.log(square(num));