###How to Add multiple script files into a ejs template file?

I have tried to add multiple script file into a one ejs file. But at a time all script files do not work. Which is at the last of the position, only that one work. I have a ejs file named index.ejs I added three scripts files named - comment.js, likeDislike.js and bookmark.js.

In the following way -

<script src="/scripts/comment.js></script>
<script src="/scripts/bookmark.js></script>
<script src="/scripts/likeDislike.js></script>

But only last one likeDislike.js works. Other two don't work. Again when I keep another file at the last of the all. Only that one works others two doesn't work.

Please advice me what can I do?