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---
title: Store
description: Creates a persistent "scratch pad" on the given page to store and manipulate data.
categories: []
keywords: []
action:
related:
- methods/page/scratch
- functions/collections/NewScratch
returnType: maps.Scratch
signatures: [PAGE.Store]
aliases: [/functions/store]
---
The `Store` method on a `Page` object creates a persistent [scratch pad] to store and manipulate data. In contrast with the [`Scratch`] method, the scratch pad created by the `Store` method is not reset on server rebuilds.
To create a locally scoped scratch pad that is not attached to a `Page` object, use the [`newScratch`] function.
[`Scratch`]: /methods/page/scratch
[`newScratch`]: functions/collections/newscratch
[scratch pad]: /getting-started/glossary/#scratch-pad
## 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.Set "greeting" "Hello" }}
{{ .Store.Add "greeting" "Welcome" }}
{{ .Store.Get "greeting" }} → HelloWelcome
```
```go-html-template
{{ .Store.Set "total" 3 }}
{{ .Store.Add "total" 7 }}
{{ .Store.Get "total" }} → 10
```
```go-html-template
{{ .Store.Set "greetings" (slice "Hello") }}
{{ .Store.Add "greetings" (slice "Welcome" "Cheers") }}
{{ .Store.Get "greetings" }} → [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[english:Hello french:Bonjour]
```
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" }}
```
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