Fix square function parameter

Author: anitahy73

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

@@ -3,18 +3,23 @@
 
 // this function should square any number but instead we're going to get an error
 
-// =============> write your prediction of the error here
+// =============> write your prediction of the error here:We will have a SyntaxError because we need a valid function parameter. 
 
 function square(3) {
     return num * num;
 }
 
-// =============> write the error message here
+// =============> write the error message here:SyntaxError: Unexpected number
 
-// =============> explain this error message here
+// =============> explain this error message here:function square(3) {
+//3 is a number, not a valid variable. Program expects a parameter name there.
 
 // Finally, correct the code to fix the problem
 
-// =============> write your new code here
+// =============> write your new code here:
+function square(num) {
+    return num * num;
+}
 
+console.log(square(3));