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| title | description | date | categories | menu | keywords | signature | workson | hugoversion | relatedfuncs | aliases | ||||||||||||
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| merge | Returns the result of merging two or more maps. | 2019-08-08 |
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0.56.0 |
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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:
{{ $m1 := dict "x" "foo" }}
{{ $m2 := dict "x" "bar" "y" "wibble" }}
{{ $m3 := dict "x" "baz" "y" "wobble" "z" (dict "a" "huey") }}
Example 1
{{ $merged := merge $m1 $m2 $m3 }}
{{ $merged.x }} --> baz
{{ $merged.y }} --> wobble
{{ $merged.z.a }} --> huey
Example 2
{{ $merged := merge $m3 $m2 $m1 }}
{{ $merged.x }} --> foo
{{ $merged.y }} --> wibble
{{ $merged.z.a }} --> huey
Example 3
{{ $merged := merge $m2 $m3 $m1 }}
{{ $merged.x }} --> foo
{{ $merged.y }} --> wobble
{{ $merged.z.a }} --> huey
Example 4
{{ $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]({{< ref "functions/append" >}}). {{% /note %}}