tarsana / functional

 * @param  array $list

 * @return array

 */

function insert() {

    static $insert = false;

    $insert = $insert ?: curry(function($position, $item, $list) {

        return (is_string($list))

            ? insertAll($position, $item, $list)

            : insertAll($position, [$item], $list);

    });

    return _apply($insert, func_get_args());

}

/**

 * Same as `insert` but inserts an array instead of a single item.

 * @param  mixed $object

 * @return mixed

 */

function update() {

    static $update = false;

    $update = $update ?: curry(function($name, $fn, $object) {

        $value = get($name, $object);

        return (null === $value) ? $object : set($name, $fn($value), $object);

    });

    return _apply($update, func_get_args());

}

/**

 * Checks if an attribute/value of an object/array passes the given predicate.