What\'s the difference between...
File.open(\'abc\', \'w\') { |f| f.puts \'abcde\' }
...and...
File.open(\'abc\', \'w\') { |f|
In cases like this, I always start with the Ruby Core documentation, in this case the IO class.
ios.puts(obj, ...) => nil
Writes the given objects to ios as with
IO#print
. Writes a record separator (typically a newline) after any that do not already end with a newline sequence. If called with an array argument, writes each element on a new line. If called without arguments, outputs a single record separator.
ios.write(string) => integer
Writes the given string to ios. The stream must be opened for writing. If the argument is not a string, it will be converted to a string using
to_s
. Returns the number of bytes written.