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Clarify that "with" blocks do not render with empty values (#1287)

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* Clarify that "with" blocks do not render on empty values

* Fix typo
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Andrew Medworth 2020-11-25 21:17:43 +00:00 committed by GitHub
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content/en/functions/with.md
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@ -1,7 +1,7 @@
--- ---
title: with title: with
# linktitle: with # linktitle: with
description: Rebinds the context (`.`) within its scope and skips the block if the variable is absent. description: Rebinds the context (`.`) within its scope and skips the block if the variable is absent or empty.
godocref: godocref:
date: 2017-02-01 date: 2017-02-01
publishdate: 2017-02-01 publishdate: 2017-02-01
@ -18,7 +18,11 @@ relatedfuncs: []
deprecated: false deprecated: false
--- ---
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. 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, unset or empty.
The set of *empty* values is defined by [the Go templates package](https://golang.org/pkg/text/template/). Empty values include `false`, the number zero, and the empty string.
If you want to render a block if an index or key is present in a slice, array, channel or map, regardless of whether the value is empty, you should use [`isset`](/functions/isset) instead.
The following example checks for a [user-defined site variable](/variables/site/) called `twitteruser`. If the key-value is not set, the following will render nothing: The following example checks for a [user-defined site variable](/variables/site/) called `twitteruser`. If the key-value is not set, the following will render nothing: