docs: Document symdiff

Closes https://github.com/gohugoio/hugoDocs/issues/659
This commit is contained in:
Bjørn Erik Pedersen 2018-11-07 10:00:33 +01:00
parent ddcb402859
commit 5d14d04ac6

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---
title: "symdiff"
description: "`collections.SymDiff` (alias `symdiff`) returns the symmetric difference of two collections."
date: 2018-11-07
categories: [functions]
menu:
docs:
parent: "functions"
keywords: [collections,intersect,union, complement]
signature: ["COLLECTION | symdiff COLLECTION" ]
hugoversion: "0.51"
aliases: []
---
Example:
```go-html-template
{{ slice 1 2 3 | symdiff (slice 3 4) }}
```
The above will print `[1 2 4]`.
Also see https://en.wikipedia.org/wiki/Symmetric_difference