update: Predict and explain code, then fix square function to correct parameter definition and error explanation in Sprint-2/1-key-errors/2.js

Author: SuWebOnes

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

@@ -1,20 +1,26 @@
-
 // Predict and explain first BEFORE you run any code...
-
+// the will be an error
 // this function should square any number but instead we're going to get an error
 
+// Why will an error occur when this program runs?
+//because the function parameter is incorrectly defined by real number instead of a variable name
+
 // =============> write your prediction of the error here
 
-function square(3) {
-    return num * num;
-}
+// function square(3) {
+//     return num * num;
+// }
 
 // =============> write the error message here
-
+//syntaxError: Unexpected number
 // =============> explain this error message here
-
+// The error occurs because the function parameter is defined as a number (3) instead of a variable name.
+// In JavaScript, function parameters must be variable names, not literal values. JavaScript is expecting a parameter name in the parentheses, not a value.
 // Finally, correct the code to fix the problem
 
 // =============> write your new code here
 
-
+function square(num) {
+  return num * num;
+}
+console.log(square(3)); // This will not work because 'num' is not defined outside the function