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1de7a358c Clarify that "with" blocks do not render with empty values (#1287) b48de8b0a Update js.md e0124e4b1 Update js.md 087b39d74 Update hosting-on-render.md (#1286) 8f02b5412 Update js.md (#1284) 8dd8a8d1d Add link to "Build Websites with Hugo" book (#1174) ae2dc138a Fix typo in page bundles (#1283) ab14bfec3 Update configuration directory section 17da77ff1 Update multilingual.md (#1280) 5bce8db3a Fix for site-hierarchy image, issue #60 9d7a2366d Fix typo ad4210c41 Fix typo c88bc0383 Fix orphan branch url (#1262) 1cf6cf5b3 Hugo 0.78.2 538c3cb86 Merge branch 'tempv0.78.2' e5e07fc81 releaser: Add release notes to /docs for release of 0.78.2 120a61a47 Fixed wrong var assignment example 4cebbb1a7 Ignore remote JSON errors (for now) 618fcf9ba Add a link to modules config option 'replacements' e12722779 Fix typo ("wil" -> "will") (#1273) 0670e9894 Update js.md 5bde834cf Update GH docs to say "main" as default branch 26312f93d Update index.md eb6f51df1 Update js.md b890dc84d Merge branch 'tempv0.78.1' 6b73ea450 releaser: Add release notes to /docs for release of 0.78.1 46e582112 Update starter-kits.md (#1268) a62786235 Update 404 docs: GitLab auto-detects 404.html (#1173) cbd4fd2d9 Fix typo (#1271) 2ba3f9386 Update js.md 7b5109d90 Update js.md bc75bc962 Release 0.78.0 0b2e8b0f1 releaser: Add release notes to /docs for release of 0.78.0 9ecba8480 Merge commit 'b74591123eac47a20d1f26ff3e2d291cd9c5cfc0' 60a475df7 js: Add avoidTDZ option 3b895261f Make js.Build fully support modules git-subtree-dir: docs git-subtree-split: 1de7a358cac94ac09a513456bdaae65e6ae94859
35 lines
1.4 KiB
Markdown
35 lines
1.4 KiB
Markdown
---
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title: with
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# linktitle: with
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description: Rebinds the context (`.`) within its scope and skips the block if the variable is absent or empty.
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godocref:
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date: 2017-02-01
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publishdate: 2017-02-01
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lastmod: 2017-03-12
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categories: [functions]
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menu:
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docs:
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parent: "functions"
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keywords: [conditionals]
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signature: ["with INPUT"]
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workson: []
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hugoversion:
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relatedfuncs: []
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deprecated: false
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---
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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.
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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.
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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.
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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:
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{{< code file="layouts/partials/twitter.html" >}}
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{{with .Site.Params.twitteruser}}<span class="twitter">
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<a href="https://twitter.com/{{.}}" rel="author">
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<img src="/images/twitter.png" width="48" height="48" title="Twitter: {{.}}"
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alt="Twitter"></a>
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</span>{{end}}
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{{< /code >}}
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