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|
---
title: with
description: Binds context (the dot) to the expression and executes the block if expression is truthy.
categories: []
keywords: []
action:
aliases: []
related:
- functions/go-template/if
- functions/go-template/else
- functions/go-template/end
- functions/collections/IsSet
returnType:
signatures: [with EXPR]
aliases: [/functions/with]
toc: true
---
{{% include "functions/go-template/_common/truthy-falsy.md" %}}
```go-html-template
{{ $var := "foo" }}
{{ with $var }}
{{ . }} → foo
{{ end }}
```
Use with the [`else`] statement:
```go-html-template
{{ $var := "foo" }}
{{ with $var }}
{{ . }} → foo
{{ else }}
{{ print "var is falsy" }}
{{ end }}
```
Initialize a variable, scoped to the current block:
```go-html-template
{{ with $var := 42 }}
{{ . }} → 42
{{ $var }} → 42
{{ end }}
{{ $var }} → undefined
```
## Understanding context
At the top of a page template, the [context] (the dot) is a `Page` object. Inside of the `with` block, the context is bound to the value passed to the `with` statement.
With this contrived example:
```go-html-template
{{ with 42 }}
{{ .Title }}
{{ end }}
```
Hugo will throw an error:
can't evaluate field Title in type int
The error occurs because we are trying to use the `.Title` method on an integer instead of a `Page` object. Inside of the `with` block, if we want to render the page title, we need to get the context passed into the template.
{{% note %}}
Use the `$` to get the context passed into the template.
{{% /note %}}
This template will render the page title as desired:
```go-html-template
{{ with 42 }}
{{ $.Title }}
{{ end }}
```
{{% note %}}
Gaining a thorough understanding of context is critical for anyone writing template code.
{{% /note %}}
[context]: /getting-started/glossary/#context
{{% include "functions/go-template/_common/text-template.md" %}}
[`else`]: /functions/go-template/else/
|
