a simple tool to debug and observe functions
treɪs | a simple tool to debug and observe functions
treis will answer the question "what arguments is this function called with and what does it return?".
It can be particularly useful when programming in point-free style.
If you want to know what a function does in the middle of a
pipeline, just do:
$ npm install treis
Returns a decorated version of
fn that prints the arguments given to
and its return value.
You can optionally label functions by passing a name before the function to
be decorated, if not, treis will try to use
Writes output to
const R = ;const treis = ;// greet ∷ String → Stringconst greet =`Hello, !`// greetPeople ∷ [String] → ()const greetPeople =R;const people = 'John' 'Jill' 'Bruce';people;
Works with browserify.
These require surround.vim:
" Surround a word with treis()nmap <buffer> <Leader>tr ysiwftreis<CR>f(" Surround a visual selection with treis()vmap <buffer> <Leader>tr Sftreis<CR>f(nmap <buffer> <Leader>tR ysiwfrequire('treis')<CR>f(vmap <buffer> <Leader>tR Sfrequire('treis')<CR>f(