4 ms·

What is the use case ? Is there simple examples one could go through?

• iopq 8y ago
  Usually you return a closure with impl Fn. Another use case is to return an iterator. I wrote a post about it. Let me know if it helps. https://medium.com/@iopguy/impl-trait-in-rust-explanation-efde0d94946a https://medium.com/@iopguy/impl-trait-in-rust-explanation-ef...
  • ejanus 8y ago
    Your code is nothing but Magic . I have spent time trying to wrap my head around it. I am almost there but I don't understand .map(<&str>::into) . Monoid implements String
    • ejanus 8y ago
      Finally, that code is itched in my brain
• steveklabnik 8y ago
  https://blog.rust-lang.org/2018/05/10/Rust-1.26.html https://blog.rust-lang.org/2018/05/10/Rust-1.26.html has a section about it.
  • ejanus 8y ago
    Thanks