Why is port a string and not an integer?

Why is port a string and not an integer?

http go port

go

How to use next available port in http.ListenAndServe

http go webserver port

go

What is the difference in listening on "0.0.0.0:80" and ":80"?

http go port

go

Host Multiple Golang Sites on One IP and Serve Depending on Domain Request?

http nginx go port

go

golang errors with bind address already in use even though nothing is running on the port

tcp go port httpserver

go

Go Revel framework with a non-localhost, live site

http nginx go port revel

go

Unable to port forward with the port range syntax in Docker SDK

docker go port docker-run

go