Merge commit '9b0050e9aabe4be65c78ccf292a348f309d50ccd' as 'docs'

```
git subtree add --prefix=docs/ https://github.com/gohugoio/hugoDocs.git master --squash
```

Closes #11925

docs/content/en/functions/compare/Default.md

@@ -0,0 +1,48 @@
+---
+title: compare.Default
+description: Returns the second argument if set, else the first argument.
+keywords: []
+action:
+  aliases: [default]
+  related:
+    - functions/compare/Conditional
+    - functions/go-template/Or
+  returnType: any
+  signatures: [compare.Default DEFAULT INPUT]
+aliases: [/functions/default]
+---
+
+The `default` function returns the second argument if set, else the first argument.
+
+{{% note %}}
+When the second argument is the boolean `false` value, the `default` function returns `false`. All _other_ falsy values are considered unset.
+
+{{% include "functions/go-template/_common/truthy-falsy.md" %}}
+
+To set a default value based on truthiness, use the [`or`] operator instead.
+
+[`or`]: /functions/go-template/or
+{{% /note %}}
+
+The `default` function returns the second argument if set:
+
+```go-html-template
+{{ default 42 1 }} → 1
+{{ default 42 "foo" }} → foo
+{{ default 42 (dict "k" "v") }} → map[k:v]
+{{ default 42 (slice "a" "b") }} → [a b]
+{{ default 42 true }} → true
+
+<!-- As noted above, the boolean "false" is considered set -->
+{{ default 42 false }} → false
+```
+
+The `default` function returns the first argument if the second argument is not set:
+
+```go-html-template
+{{ default 42 0 }} → 42
+{{ default 42 "" }} → 42
+{{ default 42 dict }} → 42
+{{ default 42 slice }} → 42
+{{ default 42 <nil> }} → 42
+```