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website: document the join function

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Mitchell Hashimoto 2014-10-09 21:23:49 -07:00
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commit f558f7a0c5
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website/source/docs/configuration/interpolation.html.md
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@ -61,5 +61,9 @@ The supported built-in functions are:
in this file are _not_ interpolated. The contents of the file are
read as-is.
* `join(delim, list)` - Joins the list with the delimiter. A list is
only possible with splat variables from resources with a count
greater than one. Example: `join(",", aws_instance.foo.*.id)`
* `lookup(map, key)` - Performs a dynamic lookup into a mapping
variable.