3 ms·

I believe strings are mutable in Ruby.

• reflectiv 13y ago
  They are... s = "hello" s << " world" s # hello world
  • dbaupp 13y ago
    Is that allocating a new buffer, leaving the "hello" string to be collected by the GC?
    • tedunangst 13y ago
      No, it expands the existing buffer. (leaving " world" to be collected). Note that the following is different and more like what you're thinking. a = a + " world"
    • jeorgun 13y ago
      No, it's operating in place: def append_world(str) str << " world" end a = "hello" append_world(a) a #=> "hello world"