freemarker templates check if sequence is empty

Question

I would like to check if a sequence is empty in a freemarker template.

This snippet works to check if a sequence contains a value:

<#if node.attachments?seq_contains("blue")>   <pre>hello</pre> </#if> 

However, if node.attachments is empty i would like to do something else.

That is the syntax for this?

Answer 1

Try:

<#if node.attachments?size != 0> 

Or:

<#if node.attachments?has_content>