Function unique

pub fn unique(arr: &mut Array) -> Result<Array, Box<EvalAltResult>>

Returns an array of the unique elements in an array.

let data = [1, 2, 2, 2, 5, 4, 4, 2, 5, 8];
let u = unique(data);
assert_eq(u, [1, 2, 4, 5, 8]);