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3075 :: String sort and handling sequence

• aedt (orginal) [2017-07-28T03:09:35+02:00] view original

  Hi

  I was wondering

  1. how you would sort a string by characters

  For example:

  
  fn main() {
      let mut x = "bad cab".chars().collect::<Vec<char>>();
      x.sort();
      println!("{}", x.into_iter().collect::<String>());
  } // prints " aabbcd"
  Run

  2. if there is any equivalent to Collect::<T>() or Collect::<Vec<T>>() in the standard library.

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• Krux02 (orginal) [2017-07-28T03:59:54+02:00] view original

  you can do this:

  import algorithm   # algorithm contains the sort function
  
  var x = "bad cab"  # `var` is for mutable
  x.sort(cmp)        # default comparison function `cmp` from system
  echo x             # prints " aabbcd"
  Run

  Well there is not really an equivalent to collect. Ther is toSeq but that only allows collecting into a seq type.

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• mashingan (orginal) [2017-07-28T06:16:01+02:00] view original

  Use sorted version for returning new sequence.

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