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tpl: Add default function

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Cameron Moore 2016-03-09 14:40:00 -06:00 committed by Bjørn Erik Pedersen
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commit 0facdbf7de
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content/templates/functions.md
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@ -28,6 +28,17 @@ and other basic tools; these are listed in the
## General ## General
### default
Checks whether a given value is set and returns a default value if it is not.
"Set" in this context means true for booleans; non-zero for numeric types;
non-zero length for strings, arrays, slices, and maps; any struct value; or
non-nil for any other types.
e.g.
{{ .Params.font | default "Roboto" }} → default is "Roboto"
{{ default "Roboto" .Params.font }} → default is "Roboto"
### delimit ### delimit
Loops through any array, slice or map and returns a string of all the values separated by the delimiter. There is an optional third parameter that lets you choose a different delimiter to go between the last two values. Loops through any array, slice or map and returns a string of all the values separated by the delimiter. There is an optional third parameter that lets you choose a different delimiter to go between the last two values.
Maps will be sorted by the keys, and only a slice of the values will be returned, keeping a consistent output order. Maps will be sorted by the keys, and only a slice of the values will be returned, keeping a consistent output order.