javascript - Can't seem to properly link an external java script -


i using wamp installation on localhost. teaching myself html/javascript/ect following tutorials on w3schools. works correctly if use following web code:

<!doctype html> <html> <body>  <h1>my first web page</h1>  <p id="demo">my first paragraph.</p>  <script> document.getelementbyid("demo").innerhtml = "paragraph changed."; </script>  </body> </html>

i trying move javascript separate file , isn't working.

contents of html (in "index" file):

<!doctype html> <html> <head> <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"> </script> <script src="test.js"></script> </head> <body> <h1>my first web page</h1>  <p id="demo">my first paragraph.</p>  </body> </html>

contents of test.js

<script> document.getelementbyid("demo").innerhtml = "paragraph changed."; </script>

i sure silly, after looking @ bunch of examples can't seem find making mistake.

first of all, in test.js do not have include <script> tag. that's error, , scripts stops because of it. test.js script should this:

document.getelementbyid("demo").innerhtml = "paragraph changed.";

on second hand, have put script @ end of body after demo element, because if load script before it, you'll never find it.

here correct solution of index.html:

<!doctype html> <html>     <head>         <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>     </head>     <body>        <h1>my first web page</h1>         <p id="demo">my first paragraph.</p>         <script src="test.js"></script>     </body> </html>

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