Ds\Sequence::map
(PECL ds >= 1.0.0)
Ds\Sequence::map — Returns the result of applying a callback to each value.
Описание
Returns the result of applying a callback
function to
each value in the sequence.
Список параметров
-
callback
-
A callable to apply to each value in the sequence.
The callable should return what the new value will be in the new sequence.
Возвращаемые значения
The result of applying a callback
to each value in
the sequence.
Замечание:
The values of the current instance won't be affected.
Примеры
Пример #1 Ds\Sequence::map() example
<?php
$sequence = new \Ds\Vector([1, 2, 3]);
print_r($sequence->map(function($value) { return $value * 2; }));
print_r($sequence);
?>
Результатом выполнения данного примера будет что-то подобное:
Ds\Vector Object ( [0] => 2 [1] => 4 [2] => 6 ) Ds\Vector Object ( [0] => 1 [1] => 2 [2] => 3 )
- PHP Руководство
- Функции по категориям
- Индекс функций
- Справочник функций
- Расширения, относящиеся к переменным и типам
- Data Structures
- Ds\Sequence::allocate
- Ds\Sequence::apply
- Ds\Sequence::capacity
- Ds\Sequence::contains
- Ds\Sequence::filter
- Ds\Sequence::find
- Ds\Sequence::first
- Ds\Sequence::get
- Ds\Sequence::insert
- Ds\Sequence::join
- Ds\Sequence::last
- Ds\Sequence::map
- Ds\Sequence::merge
- Ds\Sequence::pop
- Ds\Sequence::push
- Ds\Sequence::reduce
- Ds\Sequence::remove
- Ds\Sequence::reverse
- Ds\Sequence::reversed
- Ds\Sequence::rotate
- Ds\Sequence::set
- Ds\Sequence::shift
- Ds\Sequence::slice
- Ds\Sequence::sort
- Ds\Sequence::sorted
- Ds\Sequence::sum
- Ds\Sequence::unshift
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