let g:dartfmt_options

[drexel-ue]

What is the correct use of this variable? And where should it be declared? I currently have it in a lone file that is being sourced in my init.vim. I'd like to increase the line length to 180. Not noticing this variable come into play. I've set it to both a string and a hashmap.

[Kavantix]

I use this option like so (note --fix is not required but I find it nice to have enabled):

let g:dartfmt_options = ['--fix', '-l 80']

You can indeed call it in your vimrc/init.vim or what I do is I have it in my .vim/after/ftplugin/dart.vim which will get sourced any time you open a dart file
And I've put this version there which only sets it if it is not yet defined so I can override it for a project if I want:

if (!exists("g:dartfmt_options"))
  let g:dartfmt_options = ['--fix', '-l 80']
endif

[drexel-ue]

Oh that's super cool! I'll give it a go! what does the --fix flag bring to the table?

[Kavantix]

See this page, it involves multiple fixes

[drexel-ue]

Very interesting. Though, it doesn't seem as though the variable is being respected

[drexel-ue]

In dart.vim i have the variable defined:

if (!exists("g:dartfmt_options"))
  let g:dartfmt_options = ['--fix', '-l 180']
endif

and am sourcing it in init.vim: source $HOME/.config/nvim/plug-config/dart.vim

[drexel-ue]

Maybe it's the if? i suppose it could just be defined somewhere else

[Kavantix]

You could check what the current value is after opening a dart file
But I don’t think it should exist yet when running your init.vim unless you’ve set it earlier already

[natebosch]

You can see the content of that variable with :echo g:dartfmt_options.

I would expect to need to use ['-l', '80'] instead of ['-l 80'], however that argument also shouldn't be necessary since 80 is the default.

[natebosch]

If you update to the latest version of this plugin you should be able to use :help g:dartfmt_options to see help about the format for this variable.