Re: Found bug in contains? used with vectors.

[Jim - FooBar();]

this is probably the single most confusing name in clojure! :-)
why can't we make it "contains-key?" ?

Jim

On 03/09/12 12:14, Goldritter wrote:

Ah ok. So I need to transform a vector and/or a list into a set first.

Thanks.

Am Montag, 3. September 2012 13:05:52 UTC+2 schrieb Ambrose Bonnaire-Sergeant:

    'contains?' tests if a key is in a collection.

    Vector is an associative data structure, with keys being indexes.
    A vector of length 3 has the key 2, but not key 3.

    Thanks,
    Ambrose

    On Mon, Sep 3, 2012 at 7:03 PM, Goldritter
    <marcus.goldr...@googlemail.com <javascript:>> wrote:

        I use Clojure 1.4.0 and wanted to use 'contains?' on a vector
        and get following results:

        => (contains? [1 2 3] 3)
        false
        => (contains? [1 2 3] 2)
        true

        As it seems 'contains?' does not check for the last entry in
        the vector.

        And an other question.
        Why does contains? returns everytime 'false' when used on a list?
        => (contains? (list 1 2 3) 1)
        false
        => (contains? (list 1 2 3) 2)
        false
        => (contains? (list 1 2 3) 3)
        false

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