58509
I'm aware that 行かない means "don't go" (hope I'm not wrong).

What I don't understand is the function of で. What's its use in this sentence?
(I usually see that character used in です).
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2018-05-09T09:26:58.943
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2018-05-10T11:25:05.010
2018-05-09T11:18:31.493
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question
grammar て-form
In the phrase いかないで (Ikanaide), what's the function of で (de)?
いかないで, without any other context, is the short way of saying いかないでください,
"please don't go". A Japanese verb ending with the positive て or negative ないで
as a single, one-word sentence, is a "please do / please don't" situation:

走らないで（ください）(please) don't run

座らないで（ください）(please) don't sit down

喋らないで（ください）(please) don't talk

来て（ください）(please) come

見て（ください）(please) look

聞いて（ください）(please) listen

omitting ください is often done in casual conversation. It can also give the
request a strong feeling when it is omitted.
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2018-05-09T10:55:19.030
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answer
The で indicates a request. Incidentally 行かない means "won't go" - 行かないで is
"don't go".
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2018-05-09T23:35:15.487
58509
2018-05-09T23:35:15.487
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answer