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METHODS SHORTCODE METHODS

Scratch

Creates a “scratch pad” scoped to the shortcode to store and manipulate data.

Syntax

SHORTCODE.Scratch

Returns

maps.Scratch

The Scratch method within a shortcode creates a scratch pad to store and manipulate data. The scratch pad is scoped to the shortcode, and is reset on server rebuilds.

With the introduction of the newScratch function, and the ability to assign values to template variables after initialization, the Scratch method within a shortcode is obsolete.

Methods

Set

Sets the value of a given key.

{{ .Scratch.Set "greeting" "Hello" }}
Get

Gets the value of a given key.

{{ .Scratch.Set "greeting" "Hello" }}
{{ .Scratch.Get "greeting" }} → Hello
Add

Adds a given value to existing value(s) of the given key.

For single values, Add accepts values that support Go’s + operator. If the first Add for a key is an array or slice, the following adds will be appended to that list.

{{ .Scratch.Set "greeting" "Hello" }}
{{ .Scratch.Add "greeting" "Welcome" }}
{{ .Scratch.Get "greeting" }} → HelloWelcome
{{ .Scratch.Set "total" 3 }}
{{ .Scratch.Add "total" 7 }}
{{ .Scratch.Get "total" }} → 10
{{ .Scratch.Set "greetings" (slice "Hello") }}
{{ .Scratch.Add "greetings" (slice "Welcome" "Cheers") }}
{{ .Scratch.Get "greetings" }} → [Hello Welcome Cheers]
SetInMap

Takes a key, mapKey and value and adds a map of mapKey and value to the given key.

{{ .Scratch.SetInMap "greetings" "english" "Hello" }}
{{ .Scratch.SetInMap "greetings" "french" "Bonjour" }}
{{ .Scratch.Get "greetings" }} → map[english:Hello french:Bonjour]
DeleteInMap

Takes a key and mapKey and removes the map of mapKey from the given key.

{{ .Scratch.SetInMap "greetings" "english" "Hello" }}
{{ .Scratch.SetInMap "greetings" "french" "Bonjour" }}
{{ .Scratch.DeleteInMap "greetings" "english" }}
{{ .Scratch.Get "greetings" }} → map[french:Bonjour]
GetSortedMapValues

Returns an array of values from key sorted by mapKey.

{{ .Scratch.SetInMap "greetings" "english" "Hello" }}
{{ .Scratch.SetInMap "greetings" "french" "Bonjour" }}
{{ .Scratch.GetSortedMapValues "greetings" }} → [Hello Bonjour]
Delete

Removes the given key.

{{ .Scratch.Set "greeting" "Hello" }}
{{ .Scratch.Delete "greeting" }}

See also

  • collections.NewScratch

In this section

  • Get
  • Inner
  • InnerDeindent
  • IsNamedParams
  • Name
  • Ordinal
  • Page
  • Params
  • Parent
  • Position
  • Ref
  • RelRef
  • Scratch
  • Site
Last updated: February 3, 2024: Replace links to variable pages with links to method pages (126c323d)
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