Welcome
<% if { $x == 5 } { %> Yes,
x
is indeed 5. <% } else { %> No,
x
is not 5. <% } %>
<% foreach creature [list giraffe lion antelope fly] { %> <% if [regexp {a} $creature] { %>
<% } else { %>
<% } %>
<%=$creature%>
<% } %>