First:

<%- include('chapterButton.ejs', {chapter:List[0], scanlator, title}) %>
<%for(let i = 0; i

Continue:

<%- include('chapterButton.ejs', {chapter:List[i], scanlator, title}) %>
<%}}%>

Last:

<%- include('chapterButton.ejs', {chapter:List[List.length-1],}) %>