Completed 2.js exercise

Author: anosidium

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

@@ -5,16 +5,26 @@
 
 // =============> write your prediction of the error here
 
+// The function will not execute because of the undefined variable `num` and the parameter `3`,
+// which is not allowed to be defined with just numbers. There must be letters to define a variable
+// but can begins with numbers.
+
 function square(3) {
     return num * num;
 }
 
 // =============> write the error message here
 
+// SyntaxError: Unexpected number
+
 // =============> explain this error message here
 
+// It's referring to the function parameter `3`
+
 // Finally, correct the code to fix the problem
 
 // =============> write your new code here
 
-
+function squared(value) {
+    return value * value;
+}