javascript - What does the context parameter in webpack config really do? -

i'm trying understand context parameter in webpack's config file.

in documentation, says this:

the base directory (absolute path!) resolving entry option. if output.pathinfo set, included pathinfo shortened directory.

for example in code,

var config = {     context: __dirname + '/src',     entry: ['./index.tsx'] } 

is defining base directory entry points? in other words, assuming __dirname c:\project\, entry point c:\project\src\index.tsx? i've tried, doesn't so.

the documentation mentioned if output.pathinfo provided, "included pathinfo shortened directory." don't understand means "shortened". mean output.pathinfo , context same?