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e161ea09d Add one more Chinese file to workaround reflect: Zero(nil) b595b3a21 Add more Chinese translation 56e4e95d9 Use lang.Merge to "fill in the gaps" for untranslated pages ef079406c Merge commit '650fac3a4e7d256f4505402ab44cfc3c804b8dea' 650fac3a4 Squashed 'themes/gohugoioTheme/' changes from a1768ebb..f31a3dc8 322eff899 Add Chinese language for menus d90b886e0 Fix Markdown table syntax in previous commit 737f3dfca Update the leaf bundle vs branch bundle table 09fa1bc4e Clarify that `.Now` is obsolete 879ea3f6a Make release notes somewhat more consistent 0113e2051 Move 0.40.2-relnotes into content/en/news 77578f5bf Move content/ into new contentDir content/en/ 4dcf7c709 Fix "reflect: Zero(nil)" error in showcase 63dd25505 Release 0.40.2 2076c0d56 releaser: Prepare repository for 0.41-DEV 070fe565e releaser: Add release notes to /docs for release of 0.40.2 4ce52e913 releaser: Bump versions for release of 0.40.2 41907c487 Fix typos in syntax-highlighting.md 91753ef3d Add missing backtick b77274301 Remove duplicate release notes (0.27, 0.27.1, 0.35) 6e00da316 Remove obsolete content/release-notes/ directory 00a6d8c02 Change en dash back to `--` in 0.38.2-relnotes 51b32dc00 Update archetypes.md d0e5c2307 Release 0.40.1 4538a6d5b releaser: Prepare repository for 0.41-DEV 91b391d70 releaser: Add release notes to /docs for release of 0.40.1 e0979d143 releaser: Bump versions for release of 0.40.1 7983967c2 Clean images fe3fdd77d Polish showcase for Flesland Flis e6dde3989 Showcase - Flesland Flis AS by Absoluttweb 73aa62290 Revive @spf13's special Hugo font add67b335 Release Hugo 0.40 c0a26e5a6 Merge branch 'temp40' beeabaaae releaser: Prepare repository for 0.41-DEV e67d5e985 releaser: Add release notes to /docs for release of 0.40 6cdd95273 releaser: Bump versions for release of 0.40 bee21fb9b Revive the other Hugo logos too 4f45e8fe1 Fix the link type attribute for RSS in examples 8c67dc89a Fix example in delimit doc e7f6c00d5 Revive the logo used on the forum 82b0cd26e Merge commit 'a215abf70e018f4bf40d6c09d8bd148d8684b33d' 119c8ca58 Merge commit 'd2ec1a06df8ab6b17ad05cb008d5701b40327d47' db4683bd2 Improve .Get docs 05260b886 .Get function: fix syntax signature git-subtree-dir: docs git-subtree-split: e161ea09d33e3199f4998e4d2e9068d5a850f042
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| title | linktitle | description | godocref | date | publishdate | lastmod | categories | keywords | signature | workson | hugoversion | relatedfuncs | deprecated | toc | aliases | |||||
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| len | len | Returns the length of a variable according to its type. | https://golang.org/pkg/builtin/#len | 2017-02-01 | 2017-02-01 | 2017-04-18 |
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len is a built-in function in Golang that returns the length of a variable according to its type. From the Golang documentation:
Array: the number of elements in v.
Pointer to array: the number of elements in *v (even if v is nil).
Slice, or map: the number of elements in v; if v is nil, len(v) is zero.
String: the number of bytes in v.
Channel: the number of elements queued (unread) in the channel buffer; if v is nil, len(v) is zero.
len is also considered a fundamental function for Hugo templating.
len Example 1: Longer Headings
You may want to append a class to a heading according to the length of the string therein. The following templating checks to see if the title's length is greater than 80 characters and, if so, adds a long-title class to the <h1>:
{{< code file="check-title-length.html" >}}
{{.Title}} {{< /code >}}len Example 2: Counting Pages with where
The following templating uses where in conjunction with len to figure out the total number of content pages in a posts section:
{{< code file="how-many-posts.html" >}} {{ $posts := (where .Site.RegularPages "Section" "==" "post") }} {{ $postCount := len $posts }} {{< /code >}}
Note the use of .RegularPages, a site variable that counts all regular content pages but not the _index.md pages used to add front matter and content to list templates.