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len

docs/content/en/functions/go-template/len.md

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With a string:

go-html-template
{{ "ab" | len }} → 2
{{ "" | len }} → 0

With a slice:

go-html-template
{{ slice "a" "b" | len }} → 2
{{ slice | len }} → 0

With a map:

go-html-template
{{ dict "a" 1 "b" 2  | len }} → 2
{{ dict | len }} → 0

With a collection:

go-html-template
{{ site.RegularPages | len }} → 42

You may also determine the number of pages in a collection with:

go-html-template
{{ site.RegularPages.Len }} → 42

{{% include "/_common/functions/go-template/text-template.md" %}}