Fix parameter name

Author: Frumentius-Rev

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

@@ -4,17 +4,30 @@
 // this function should square any number but instead we're going to get an error
 
 // =============> write your prediction of the error here
+// I think using 3 will cause an error as parameter
+// A parameter must be a valid variable name, not a number 
 
-function square(3) {
-    return num * num;
-}
+ /* function square(3){
+   return  num * num;
 
-// =============> write the error message here
+}
+   */
+ 
+// =============> write the error message here 
+// SyntaxError: Unexpected number
 
 // =============> explain this error message here
+// The parser sees the number 3 where it expects a valid parameter name,
+// so it cannot understand the structure of the function
+// It means we cannot use a number as a parameter name
+
 
 // Finally, correct the code to fix the problem
 
 // =============> write your new code here
 
+function square(num){
+   return  num * num;
 
+}
+console.log(square(7));