C# String Split

Accepted answer

Strings are immutable types - once created an instance cannot be changed.

String.Split() simply produces an array of sub-strings. So it does add more objects to the heap but this is unavoidable.

Sam Hobbs15y ago

In additon to what Vulpes said, when it comes to efficiency, your time is also costly. Sometimes it is more efficient to use less of our time.

Vulpes15y ago

Incidentally, John, I wouldn't worry too much about methods in the string class tending to produce a lot of new string instances.

Most of these new strings will quickly go out of scope (when say the enclosing method returns) and be quickly destroyed - and the memory freed - by the garbage collector when it does its next generation 0 collection. Normally, these types of collections occur quite frequently and take less than 1 ms so you don't notice them.

Suthish Nair15y ago

This msdn article describes it all.