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Jeffrey Libatique
6,701 PointsAlert only displays "Lilah" x3
I copied the example and ran it on the browsers' console but I'm getting a different result.
function greeting() { var person = 'Lilah'; alert(person); } var person = 'George'; greeting(); greeting(person); greeting();
When I run this on the browser's console it only shows three alert boxes with 'Lilah' and it never shows the variable 'George'.
2 Answers
Steven Parker
243,656 PointsI think you might be missing the point.
It looks like this code is intended to demonstrate "scope rules", and since the function creates it's own variable named "person", it's entirely correct for it to display "Lilah" each time it is called. The variable created inside the function overrides the one created in the global scope.
Now just in case I have misinterpreted this exercise, post a link to the course page you are working with and I'll take another look.
Tommy Leng
Front End Web Development Techdegree Student 12,417 PointsYou should put person as the argument not a variable.
function greeting (person){ alert(person); }
Jeffrey Libatique
6,701 PointsThank you! I got it now.
Steven Parker
243,656 Points
Jeffrey Libatique
6,701 PointsJeffrey Libatique
6,701 PointsThank you for responding. Here's the link.
https://teamtreehouse.com/library/javascript-basics/creating-reusable-code-with-functions/variable-scope
I'm following the code that is mentioned and tried it on chrome's console but it only shows "Lilah".
Somehow I think I'm getting the point now.
Jeffrey Libatique
6,701 PointsJeffrey Libatique
6,701 PointsI got it now. I followed the video and now I know where I got confused.
function greeting() { var person = 'Lilah'; alert(person); } var person = 'George'; greeting(); alert (person); greeting();
This is how I got it.
Steven Parker
243,656 PointsSteven Parker
243,656 PointsNow that you shared the link, I can confirm that was the error. Good job spotting it yourself!
I was right, this is a scope demonstration, but as you discovered, you originally had written "greeting" where it should have been "alert".