Fix syntax error in square function by updating parameter name

Author: Monsur0001

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

@@ -4,17 +4,24 @@
 // this function should square any number but instead we're going to get an error
 
 // =============> write your prediction of the error here
+// I predict that there will be a syntax error because the parameter name "3" is not a valid
+//  identifier.
 
 function square(3) {
     return num * num;
 }
 
 // =============> write the error message here
+// SyntaxError: Function argument name must be a valid identifier
 
 // =============> explain this error message here
+// The error occurs because "3" is not a valid identifier for a function parameter. 
+// In JavaScript, parameter names must follow the rules for identifiers, which means they 
+// cannot be numbers or reserved keywords.
 
 // Finally, correct the code to fix the problem
 
 // =============> write your new code here
-
-
+function square(num) {
+    return num * num;
+}