What is the purpose of the first argument of the map filter?

[ericmorand]

https://twig.symfony.com/doc/2.x/filters/map.html

The doc of the map filter declare on argument named array:

array: The sequence or mapping

What is its purpose? Isn't it the value that the filter is applied to? If so it shouldn't be part of the documentation arguments.

[stof]

This looks like a mistake in the doc. The PHP function indeed has the array as first argument, but this is indeed the value being filtered.

[ericmorand]

OK, that's what I assumed.

I'm reviewing the whole functions and filters doc to make sure that Twing support for named arguments is correct. And I couldn't find a fit for array. I'm glad it's just a doc issue.

[ericmorand]

Same issue with reduce by the way:

https://twig.symfony.com/doc/2.x/filters/reduce.html