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build-in function for obtaining the index of an element of a list


From: ishi soichi
Subject: build-in function for obtaining the index of an element of a list
Date: Wed, 4 Jan 2012 15:33:02 +0900

I have a question about Emacs Lisp.

Is there any Emacs built-in function that returns the index of an element of a list?

More specifically, say I have a list

(setq lista '("apple" "banana" "orange))

then implement the function, which I want,

(functionName lista "banana")    ; => 1

If not, please give me an example of such function definition.

Thanks in advance!

soichi

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