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The index must be non-negative integer 

and added instructions on how to get the last value in the list.
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craiggenner 2020-10-22 19:03:27 +01:00 committed by GitHub
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11
website/docs/configuration/functions/element.html.md
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@ -19,7 +19,7 @@ element(list, index)
```
The index is zero-based. This function produces an error if used with an
empty list.
empty list. The index must be non-negative integer.
Use the built-in index syntax `list[index]` in most cases. Use this function
only for the special additional "wrap-around" behavior described below.
@ -39,6 +39,15 @@ If the given index is greater than the length of the list then the index is
a
```
To get the last element from the list use [`length`](./length.html) to find
the size of the list (minus 1 as the list is zero-based) and then pick the
last element:
```
> element(["a", "b", "c"], length(["a", "b", "c"])-1)
c
```
## Related Functions
* [`index`](./index.html) finds the index for a particular element value.