hugo/docs/content/en/functions/Store.md
2023-10-20 09:43:56 +02:00

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---
title: .Store
description: Returns a Scratch that is not reset on server rebuilds.
categories: [functions]
keywords: []
menu:
docs:
parent: functions
function:
aliases: []
returnType:
signatures: []
relatedFunctions:
- .Store
- .Scratch
---
The `.Store` method on `.Page` returns a [Scratch] to store and manipulate data. In contrast to the `.Scratch` method, this Scratch is not reset on server rebuilds.
[Scratch]: /functions/scratch/
### Methods
#### .Set
Sets the value of a given key.
```go-html-template
{{ .Store.Set "greeting" "Hello" }}
```
#### .Get
Gets the value of a given key.
```go-html-template
{{ .Store.Set "greeting" "Hello" }}
{{ .Store.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.
```go-html-template
{{ .Store.Add "greetings" "Hello" }}
{{ .Store.Add "greetings" "Welcome" }}
{{ .Store.Get "greetings" }} → HelloWelcome
```
```go-html-template
{{ .Store.Add "total" 3 }}
{{ .Store.Add "total" 7 }}
{{ .Store.Get "total" }} → 10
```
```go-html-template
{{ .Store.Add "greetings" (slice "Hello") }}
{{ .Store.Add "greetings" (slice "Welcome" "Cheers") }}
{{ .Store.Get "greetings" }} → []interface {}{"Hello", "Welcome", "Cheers"}
```
#### .SetInMap
Takes a `key`, `mapKey` and `value` and adds a map of `mapKey` and `value` to the given `key`.
```go-html-template
{{ .Store.SetInMap "greetings" "english" "Hello" }}
{{ .Store.SetInMap "greetings" "french" "Bonjour" }}
{{ .Store.Get "greetings" }} → map[french:Bonjour english:Hello]
```
#### .DeleteInMap
Takes a `key` and `mapKey` and removes the map of `mapKey` from the given `key`.
```go-html-template
{{ .Store.SetInMap "greetings" "english" "Hello" }}
{{ .Store.SetInMap "greetings" "french" "Bonjour" }}
{{ .Store.DeleteInMap "greetings" "english" }}
{{ .Store.Get "greetings" }} → map[french:Bonjour]
```
#### .GetSortedMapValues
Returns an array of values from `key` sorted by `mapKey`.
```go-html-template
{{ .Store.SetInMap "greetings" "english" "Hello" }}
{{ .Store.SetInMap "greetings" "french" "Bonjour" }}
{{ .Store.GetSortedMapValues "greetings" }} → [Hello Bonjour]
```
#### .Delete
Removes the given key.
```go-html-template
{{ .Store.Set "greeting" "Hello" }}
{{ .Store.Delete "greeting" }}
```