saleyn / etran Goto Github PK
View Code? Open in Web Editor NEWErlang Parse Transforms Including Fold (MapReduce) comprehension, Elixir-like Pipeline, and default function arguments
Home Page: https://hexdocs.pm/etran
License: MIT License
Erlang Parse Transforms Including Fold (MapReduce) comprehension, Elixir-like Pipeline, and default function arguments
Home Page: https://hexdocs.pm/etran
License: MIT License
With listcomp parse transform, when compiling the following code:
[{Idx,I} || Idx, {req, FF} <- [{req, [10,20,30]}], I <- FF]
it produces the warning: Warning: variable 'FF' is unused
.
This is because the code gets transformed into:
element(1,
lists:mapfoldl(fun ({_I@5_54 = {req, FF}, I}, Idx) ->
{{Idx, I}, Idx + 1}
end,
1,
[{_I@5_54, I}
|| _I@5_54 = {req, FF} <- [{req, [10, 20, 30]}],
I <- FF]))
where the FF
variable in the lambda is unused in its body. The solution is to check the body of the lambda, and prefix all unused variables.
The workaround is to prefix the unused variables with _
:
[{Idx,I} || Idx, {req, _FF} <- [{req, [10,20,30]}], I <- _FF]
A declarative, efficient, and flexible JavaScript library for building user interfaces.
๐ Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
An Open Source Machine Learning Framework for Everyone
The Web framework for perfectionists with deadlines.
A PHP framework for web artisans
Bring data to life with SVG, Canvas and HTML. ๐๐๐
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
Some thing interesting about web. New door for the world.
A server is a program made to process requests and deliver data to clients.
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
Some thing interesting about visualization, use data art
Some thing interesting about game, make everyone happy.
We are working to build community through open source technology. NB: members must have two-factor auth.
Open source projects and samples from Microsoft.
Google โค๏ธ Open Source for everyone.
Alibaba Open Source for everyone
Data-Driven Documents codes.
China tencent open source team.