corrected the function parameter syntax

Author: simanongawuza

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

@@ -4,17 +4,25 @@
 // this function should square any number but instead we're going to get an error
 
 // =============> write your prediction of the error here
+// The will be no output printed on the console because there is no code to instructing printing.
+// The num variable is not defined and 3 is used instead of num
 
 function square(3) {
     return num * num;
 }
 
 // =============> write the error message here
+SyntaxError: Unexpected number
 
 // =============> explain this error message here
+// This error illustrates that a number was used instead of a variable name. 
 
 // Finally, correct the code to fix the problem
 
 // =============> write your new code here
 
-
+function square(num) {
+    squareNum = num * num;
+    return squareNum;
+}
+console.log(square(3));