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Sep 12, 2012
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Add a splat technique to concatenating arrays #55

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Add a splat technique to concatenating arrays
Aug 29, 2012
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Merge pull request #1 from coffeescript-cookbook/master
Sep 7, 2012
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Add a splat technique to concatenating arrays 
The article lacked any mention of the CoffeeScript's splat, which is more concise than prototype.apply.
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Bryce Culhane committed Aug 29, 2012
commit 9d10d31bfbfab720e1a0d7d99074d898b3f7a1b5
10 changes: 10 additions & 0 deletions chapters/arrays/concatenating-arrays.md
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Expand Up @@ -46,6 +46,16 @@ array1
# => [1, 2, 3, 4, 5, 6]
{% endhighlight %}

Alternatively, we can pass a CoffeeScript splat (`array2...`) directly into `push()`, avoiding the Array prototype.

{% highlight coffeescript %}
array1 = [1, 2, 3]
array2 = [4, 5, 6]
array1.push array2...
array1
# => [1, 2, 3, 4, 5, 6]
{% endhighlight %}

## Discussion

CoffeeScript lacks a special syntax for joining arrays, but `concat()` and `push()` are standard JavaScript methods.