Server.MapPath with usage of . , .. , ~ and / Characters in ASP.NET

When using Server.MapPath in ASP.NET, the developers can specify the characters as shown below.

var path1 = Server.MapPath(“.”)
var path2 = Server.MapPath(“..”)
var path3 = Server.MapPath(“~”)
var path4 = Server.MapPath(“/”)

What is the difference between the above methods ?

Assume that the website is installed in the path D:\WebApplications\Abundantcode and the root of the IIS is C:\Inetpub\wwwroot and assume that the current page is https://abundantcode.com/popularposts

The path1 will contain D:\WebApplications\Abundantcode\popularposts which is the current physical directory of the file

Path 2 will contain D:\WebApplications\Abundantcode\ which is the parent directory

Path 3 will contain D:\WebApplications\Abundantcode\ which is the physical path of the root of the application.

Path 4 will contain C:\Inetpub\wwwroot which is root of the domain name.

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