How to var_dump variables in twig templates?

Question

View layer pattern where you only present what you have been given is fine and all, but how do you know what is available? Is there a \"list all defined variables\" function

Answer 1

you can use dump function and print it like this

{{ dump(MyVar) }}

but there is one nice thing too, if you don't set any argument to dump function, it will print all variables are available, like

{{ dump() }}