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author | Bjørn Erik Pedersen <bjorn.erik.pedersen@gmail.com> | 2018-09-10 09:48:10 +0200 |
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committer | Bjørn Erik Pedersen <bjorn.erik.pedersen@gmail.com> | 2018-09-14 10:12:08 +0200 |
commit | e27fd4c1b80b7acb43290ac50e9f140d690cf042 (patch) | |
tree | 34b0f36bde4598781f9b331b5956fae3b4b33866 /common | |
parent | b7ca3e1b3a83ef27bef841c319edb5b377cc4102 (diff) |
tpl/collections: Add collections.Append
Before this commit you would typically use `.Scratch.Add` to manually create slices in a loop.
With variable overwrite in Go 1.11, we can do better. This commit adds the `append` template func.
A made-up example:
```bash
{{ $p1 := index .Site.RegularPages 0 }}{{ $p2 := index .Site.RegularPages 1 }}
{{ $pages := slice }}
{{ if true }}
{{ $pages = $pages | append $p2 $p1 }}
{{ end }}
```
Note that with 2 slices as arguments, the two examples below will give the same result:
```bash
{{ $s1 := slice "a" "b" | append (slice "c" "d") }}
{{ $s2 := slice "a" "b" | append "c" "d" }}
```
Both of the above will give `[]string{a, b, c, d}`.
This commit also improves the type handling in the `slice` template function. Now `slice "a" "b"` will give a `[]string` slice. The old behaviour was to return a `[]interface{}`.
Fixes #5190
Diffstat (limited to 'common')
-rw-r--r-- | common/collections/collections.go | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/common/collections/collections.go b/common/collections/collections.go index 854f705b3..f2dd3071d 100644 --- a/common/collections/collections.go +++ b/common/collections/collections.go @@ -24,5 +24,5 @@ type Grouper interface { // in collections.Slice template func to get types such as Pages, PageGroups etc. // instead of the less useful []interface{}. type Slicer interface { - Slice(items []interface{}) (interface{}, error) + Slice(items interface{}) (interface{}, error) } |