with

Syntax

with INPUT

An alternative way of writing an if statement and then referencing the same value is to use with instead. with rebinds the context (.) within its scope and skips the block if the variable is absent or unset.

The following example checks for a user-defined site variable called twitteruser. If the key-value is not set, the following will render nothing:

{{with .Site.Params.twitteruser}}<span class="twitter">
<a href="https://twitter.com/{{.}}" rel="author">
<img src="/images/twitter.png" width="48" height="48" title="Twitter: {{.}}"
 alt="Twitter"></a>
</span>{{end}}