clojure - access element of 2d vector [duplicate]

Question

This question already has answers here:

How do I access a specific element in a vector of vectors clojure (5 answers)

Closed 9 years ago.

if I have a 2d vector like this:

[[1 2] [3 4] [5 6]]

Is this the best way to access an element at a co-ordinate [0, 0]

(get (get v 0) 0)

Or is there a better way?

Answer 1

Use get-in to access a nested structure:

(get-in v [0 0]) ; => 1

Answer 2

get-in works as advertised but it destructuring can work as well.

(def v [[1 2] [3 4] [5 6]])
(let [[[a b][c d][e f]] v]
    a)