JavaScript equivalent of PHP function: array_flip

Don’t think there’s one built in. Example implementation here, though :).

function array_flip( trans )
{
    var key, tmp_ar = {};

    for ( key in trans )
    {
        if ( trans.hasOwnProperty( key ) )
        {
            tmp_ar[trans[key]] = key;
        }
    }

    return tmp_ar;
}