questions answered and code fixed

Author: AdnaanA

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

@@ -4,17 +4,37 @@
 // 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 SyntaxError because the parameter '3' is not a valid identifier. 
+Function parameters must be valid variable names.*/
+
+/*
 
 function square(3) {
     return num * num;
 }
 
+*/
+
 // =============> write the error message here
+/* Process exited with code 1
+Uncaught SyntaxError /home/ads/Desktop/CYF-SEP/Module-Structuring-and-Testing-Data/Sprint-2/1-key-errors/2.js:10
+function square(3) {
+                ^
+
+SyntaxError: Unexpected number */
 
 // =============> explain this error message here
+/* The error message indicates a SyntaxError due to an "Unexpected number". This occurs because the function
+parameter '3' is not a valid identifier. In JavaScript, function parameters must be valid variable names, and 
+using a number as a parameter name is not allowed. The JavaScript engine expects a valid identifier after the 
+opening parenthesis of the function declaration, but it encounters a number instead, leading to the syntax error.*/
 
 // Finally, correct the code to fix the problem
 
 // =============> write your new code here
 
+function square(num) {
+    return num * num;
+}
 
+console.log(square(4)); // Output: 16