c# - new FileInfo(path).Name versus Path.GetFileName(path)

Question

which one is better to use and why? I mean in which aspects these two commands differ and how? Performance, readability, ...

new FileInfo(path).Name or Path.GetFileName(path)

Answer 1

Simply as you won't have to Create a new Object for using Path.GetFilename() it will perform better.

Here is a Comparison for both:

Code:

Path.GetFileName("G:\u.png")

IL:

IL_0000:  ldstr       "G:u.png"
IL_0005:  call        System.IO.Path.GetFileName

Code:

new FileInfo("G:\u.png").Name

IL:

IL_0000:  ldstr       "G:u.png"
IL_0005:  newobj      System.IO.FileInfo..ctor
IL_000A:  callvirt    System.IO.FileSystemInfo.get_Name