glad to hear it

(I'm) glad to hear it.

a phrase expressing pleasure at what the speaker has just said. Sally: We have a new car, finally. Mary: I'm glad to hear it. Tom: Is your sister feeling better? Bill: Oh, yes, thanks. Tom: Glad to hear it.
See also: glad, hear
References in classic literature ?
I am very glad to hear it indeed, and now I shall never be ashamed of liking Udolpho myself.