I've seen a few topics on "~てやる" here (I do apologise in advance if this
question overlaps too much with any previous answered posts), but I have a
specific question regarding the phrase "やってやる".

I was told by a fellow Japanese learner that "やってやる" is a casual way of saying
"I'll do it for you" so the nuance is + "for someone". However, my textbook
only lists the following definitions:

> To do it/ to give it a go

With no mention of doing something specifically "for someone".

Is the nuance indeed doing something "for someone" or is it just "I'll do it"
regardless of whether your doing something for someone or not?
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2017-09-03T21:39:53.823
52993
2023-02-27T01:50:16.847
25656
question
nuances
The nuance of "やってやる"