Fix parameter definition in square function and update error predictions and explanations

Author: MohammedNaru

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

@@ -1,20 +1,37 @@
 
 // Predict and explain first BEFORE you run any code...
 
+// I predict that the code will throw a ReferenceError because the variable 'num' is not defined within the function scope.
+
 // 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 the code will throw a ReferenceError because the variable 'num' is not defined within the function scope.
+
+/
+
 function square(3) {
     return num * num;
 }
 
 // =============> write the error message here
 
+// ReferenceError: num is not defined
+
 // =============> explain this error message here
 
+// This error message indicates that the variable 'num' is being used before it has been declared or defined.
+// In the function 'square', the parameter is incorrectly defined as a literal value (3) instead of a variable name.
+
 // Finally, correct the code to fix the problem
 
 // =============> write your new code here
 
-
+function square(num) {
+    return num * num;
+}
+// Example:
+console.log(square(3)); // Output: 9