mirror of
https://github.com/gohugoio/hugo.git
synced 2024-11-14 20:37:55 -05:00
5fd1e74903
``` git subtree add --prefix=docs/ https://github.com/gohugoio/hugoDocs.git master --squash ``` Closes #11925
69 lines
1.4 KiB
Markdown
69 lines
1.4 KiB
Markdown
---
|
|
title: collections.Merge
|
|
description: Returns the result of merging two or more maps.
|
|
categories: []
|
|
keywords: []
|
|
action:
|
|
aliases: [merge]
|
|
related:
|
|
- functions/collections/Append
|
|
returnType: any
|
|
signatures: [collections.Merge MAP MAP...]
|
|
aliases: [/functions/merge]
|
|
---
|
|
|
|
Returns the result of merging two or more maps from left to right. If a key already exists, `merge` updates its value. If a key is absent, `merge` inserts the value under the new key.
|
|
|
|
Key handling is case-insensitive.
|
|
|
|
The following examples use these map definitions:
|
|
|
|
```go-html-template
|
|
{{ $m1 := dict "x" "foo" }}
|
|
{{ $m2 := dict "x" "bar" "y" "wibble" }}
|
|
{{ $m3 := dict "x" "baz" "y" "wobble" "z" (dict "a" "huey") }}
|
|
```
|
|
|
|
Example 1
|
|
|
|
```go-html-template
|
|
{{ $merged := merge $m1 $m2 $m3 }}
|
|
|
|
{{ $merged.x }} → baz
|
|
{{ $merged.y }} → wobble
|
|
{{ $merged.z.a }} → huey
|
|
```
|
|
|
|
Example 2
|
|
|
|
```go-html-template
|
|
{{ $merged := merge $m3 $m2 $m1 }}
|
|
|
|
{{ $merged.x }} → foo
|
|
{{ $merged.y }} → wibble
|
|
{{ $merged.z.a }} → huey
|
|
```
|
|
|
|
Example 3
|
|
|
|
```go-html-template
|
|
{{ $merged := merge $m2 $m3 $m1 }}
|
|
|
|
{{ $merged.x }} → foo
|
|
{{ $merged.y }} → wobble
|
|
{{ $merged.z.a }} → huey
|
|
```
|
|
|
|
Example 4
|
|
|
|
```go-html-template
|
|
{{ $merged := merge $m1 $m3 $m2 }}
|
|
|
|
{{ $merged.x }} → bar
|
|
{{ $merged.y }} → wibble
|
|
{{ $merged.z.a }} → huey
|
|
```
|
|
|
|
{{% note %}}
|
|
Regardless of depth, merging only applies to maps. For slices, use [append](/functions/collections/append).
|
|
{{% /note %}}
|