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
6b00298bb Remove outdated "related example"
987f1e1cd Fix dead links (#601)
96287a20a Add config option "summaryLength" (#600)
ced7f2085 Adjust Over showcase
e334a6354 Add new showcase: over
10435b502 Add warning about privacy options only work with internal templates (#525)
48c6b0e4d Minor grammatical fix
684670ebc Add quote
0e9fada52 Improvements to taxonomy template examples
e06c4bf73 Add syntax highlighting; consistent 4-space indentation
c1cb3f081 Remove dead links for custom permalinks
3e3aefd04 Fix 0a671bc3751479e74a0a9d2132736c61d239707c
d65888685 fix file name in 'Add Non-content Entries to a Menu' code toggle (#547)
1a0563857 Add Solus install guide (#590)
8a0d65b0d Update Windows Installation instructions (#564)
c4348636a Fix typo
0a671bc37 Add post to menu example
af14497c6 Add notes for `os.Stat` (Hugo 0.47) (#557)
e49f65bb3 Singular to plural
cb5608dbf Update introduction.md
30b060dff Add variable re-definition example (Hugo v0.48+)
21123967e Minor edits
fac3df043 Refresh the Go Templates introduction
4a9600e92 Updating URL to how-to-guide for hosting hugo site on firebase
bfaa7779c add missing word
c2cb5d09b Tweak 'name: weight' to 'name: date' in example (#582)
5ea938ad6 Remove some Scratch
2708dcd57 Release 0.48
e375d0f05 Merge branch 'temp48'
75e36c160 releaser: Prepare repository for 0.49-DEV
a6102f253 releaser: Add release notes to /docs for release of 0.48
41fc35db4 releaser: Bump versions for release of 0.48
64b9ecc74 Spell out the npm command for installing PostCSS
19e900a17 Improved Related Content doc
fe21600e7 Merge commit '844aef544c19e9d8f529b4f8144e089d0982bb34'
844aef544 Squashed 'themes/gohugoioTheme/' changes from 66249819..68ddff44
069828db8 Update git.md
d881d1433 Make default "related" behavior more explicit
60b9160eb Add docs for displaying 404 page on CloudFront
b72ebc760 Add .gitattributes to /resources
000cf85f4 Make the pros/cons styling consistent for summaries; use desc list
ebf1da97a Add note about outputStyle compressed
e3338ee91 Triple backquote syntax fix
361962a7c Add one more Blogger to Hugo tool for Windows (.NET Framework 4.5) (#540)
066606a21 Fix wrong link about Mmark Syntax Document
faee70757 Added exitwp-for-hugo
6b4108051 Add hugo-wrapper to starter-kits
4695dfba2 Added Utterances as Comments Alternatives.
c7ba9e3e1 Correct typo
beb850d9f Release 0.47.1
1cf417c8a Merge branch 'temp471'
0843bc46c releaser: Prepare repository for 0.48-DEV
8ff5c8b70 releaser: Add release notes to /docs for release of 0.47.1
e2353434d releaser: Bump versions for release of 0.47.1
ffb1300af Update development.md
c22234ea5 netlify: Minify output
5b9191c56 Release 0.47
bfd92cf52 releaser: Prepare repository for 0.48-DEV
ac7acf730 releaser: Add release notes to /docs for release of 0.47
b0096099d releaser: Bump versions for release of 0.47
86a7ae459 docs: Regenerate CLI docs
d2c8b72bc Merge commit 'a95896878f4b4a79448b39ce93a4e0d3258b4a43'
84de7ef59 Merge commit '3a44bf182fed5f34621f450114083a6dd7e88a07'
git-subtree-dir: docs
git-subtree-split: 6b00298bb26b700281df28817b6556e7480cdd1e
Add a regex matcher for json types. Specifically support LD+JSON which
allows for google seo minification out of the box. Expanded JS/JSON
minification testing.
This extends the page grouping in Hugo with a template function that allows for ad-hoc grouping.
A made-up example:
```
{{ $cool := where .Site.RegularPages "Params.cool" true | group "cool" }}
{{ $blue := where .Site.RegularPages "Params.blue" true | group "blue" }}
{{ $paginator := .Paginate (slice $cool $blue) }}
```
Closes#4865
This also adjusts the pagination logic to allow for these new collections.
Note that we will follow up with a template function named `group` that will be the end user API. The `.Group` method on `Page` should be considered as internal.
Updates #4865
Fix godoc comments and the following:
resource/image.go:33:2: a blank import should be only in a main or test package, or have a comment justifying it
resource/image.go:35:2: a blank import should be only in a main or test package, or have a comment justifying it
resource/image.go:41:2: a blank import should be only in a main or test package, or have a comment justifying it
resource/image.go:538:10: if block ends with a return statement, so drop this else and outdent its block
resource/resource.go:54:7: exported const DefaultResourceType should have comment or be unexported
resource/resource.go:233:1: receiver name r1 should be consistent with previous receiver name r for Resources
resource/resource.go:254:1: receiver name r1 should be consistent with previous receiver name r for Resources
related/inverted_index.go:76:1: exported method Config.Add should have comment or be unexported
related/inverted_index.go:255:1: exported method IndexConfig.ToKeywords should have comment or be unexported
helpers/general.go:448:1: comment on exported function DiffStrings should be of the form "DiffStrings ..."
helpers/hugo.go:42:6: exported type HugoVersionString should have comment or be unexported
helpers/hugo.go:48:1: exported method HugoVersion.Version should have comment or be unexported
helpers/hugo.go:56:1: comment on exported method HugoVersionString.Compare should be of the form "Compare ..."
helpers/hugo.go:62:1: comment on exported method HugoVersionString.Eq should be of the form "Eq ..."
helpers/path.go:548:1: comment on exported function OpenFilesForWriting should be of the form "OpenFilesForWriting ..."
helpers/processing_stats.go:24:6: exported type ProcessingStats should have comment or be unexported
helpers/processing_stats.go:55:1: exported function NewProcessingStats should have comment or be unexported
helpers/processing_stats.go:59:1: exported method ProcessingStats.Incr should have comment or be unexported
helpers/processing_stats.go:63:1: exported method ProcessingStats.Add should have comment or be unexported
helpers/processing_stats.go:67:1: exported method ProcessingStats.Table should have comment or be unexported
helpers/processing_stats.go:83:1: exported function ProcessingStatsTable should have comment or be unexported
deps/deps.go:79:6: exported type Listeners should have comment or be unexported
deps/deps.go:86:1: exported method Listeners.Add should have comment or be unexported
deps/deps.go:92:1: exported method Listeners.Notify should have comment or be unexported
config/configProvider.go:54:9: if block ends with a return statement, so drop this else and outdent its block (move short variable declaration to its own line if necessary)
config/privacy/privacyConfig.go:99:1: exported function DecodeConfig should have comment or be unexported
config/services/servicesConfig.go:64:1: exported function DecodeConfig should have comment or be unexported
common/errors/errors.go:21:1: comment on exported var FeatureNotAvailableErr should be of the form "FeatureNotAvailableErr ..."
common/errors/errors.go:23:5: error var FeatureNotAvailableErr should have name of the form ErrFoo
common/maps/scratch.go:76:1: comment on exported method Scratch.Delete should be of the form "Delete ..."
common/maps/scratch.go:133:1: exported function NewScratch should have comment or be unexported
common/types/types.go:44:1: exported function NewKeyValuesStrings should have comment or be unexported
commands/hugo.go:65:1: exported method Response.IsUserError should have comment or be unexported
commands/import_jekyll.go💯21: error strings should not be capitalized or end with punctuation or a newline
commands/server.go:417:1: receiver name sc should be consistent with previous receiver name s for serverCmd
Doing so was probably a mistake. This may be a breaking change for some people,
but it's easy to restore the previous behaviour in the layouts.
Fixes#5172
