flatMap

val numbers = arrayOf(arrayOf(1, 2), arrayOf(3, 4), arrayOf(5, 6))
// 将嵌套数组展平为单个列表,展平后的列表: [1, 2, 3, 4, 5, 6]
numbers.flatMap { it.toList() }.forEach {
    _console.log(it)
}

def numbers = $objectWrappers.wrap($arrays.arrayOf($plugins.loadClass("java.lang.Object"), $arrays.arrayOf($plugins.loadClass("java.lang.Integer"), 1, 2), $arrays.arrayOf($plugins.loadClass("java.lang.Integer"), 3, 4), $arrays.arrayOf($plugins.loadClass("java.lang.Integer"), 5, 6)))
// 将嵌套数组展平为单个列表,展平后的列表: [1, 2, 3, 4, 5, 6]
numbers.flatMap { $arrays.toList(it) }.forEach {
    $console.log(it)
}

let numbers = $objectWrappers.wrap($arrays.arrayOf($plugins.loadClass("java.lang.Object"), $arrays.arrayOf($plugins.loadClass("java.lang.Integer"), 1, 2), $arrays.arrayOf($plugins.loadClass("java.lang.Integer"), 3, 4), $arrays.arrayOf($plugins.loadClass("java.lang.Integer"), 5, 6)))
// 将嵌套数组展平为单个列表,展平后的列表: [1, 2, 3, 4, 5, 6]
numbers.flatMap(it => $arrays.toList(it)).forEach((it) => {
    $console.log(it)
})

local numbers = _objectWrappers:wrap(_arrays:arrayOf(_plugins:loadClass("java.lang.Object"), _arrays:arrayOf(_plugins:loadClass("java.lang.Integer"), 1, 2), _arrays:arrayOf(_plugins:loadClass("java.lang.Integer"), 3, 4), _arrays:arrayOf(_plugins:loadClass("java.lang.Integer"), 5, 6)))
-- 将嵌套数组展平为单个列表,展平后的列表: [1, 2, 3, 4, 5, 6]
numbers:flatMap(function(it)
    return _arrays:toList(it)
end)   :forEach(function(it)
    _console:log(it)
end)

<?php
$numbers = $objectWrappers->wrap($arrays->arrayOf($plugins->loadClass("java.lang.Object"), $arrays->arrayOf($plugins->loadClass("java.lang.Long"), 1, 2), $arrays->arrayOf($plugins->loadClass("java.lang.Long"), 3, 4), $arrays->arrayOf($plugins->loadClass("java.lang.Long"), 5, 6)));
// 将嵌套数组展平为单个列表,展平后的列表: [1, 2, 3, 4, 5, 6]
$numbers->flatMap(function ($it) use ($arrays) {
    return $arrays->toList($it);
})->forEach(function ($it) use ($console) {
    $console->log($it);
});

numbers = _objectWrappers.wrap(
    _arrays.arrayOf(_plugins.loadClass("java.lang.Object"), _arrays.arrayOf(_plugins.loadClass("java.lang.Long"), 1, 2),
                    _arrays.arrayOf(_plugins.loadClass("java.lang.Long"), 3, 4),
                    _arrays.arrayOf(_plugins.loadClass("java.lang.Long"), 5, 6)))
# 将嵌套数组展平为单个列表,展平后的列表: [1, 2, 3, 4, 5, 6]
numbers.flatMap(lambda it: _arrays.toList(it)).forEach(lambda it: _console.log(it))

# encoding: utf-8
numbers = $objectWrappers.wrap($arrays.arrayOf($plugins.loadClass("java.lang.Object"), $arrays.arrayOf($plugins.loadClass("java.lang.Long"), 1, 2), $arrays.arrayOf($plugins.loadClass("java.lang.Long"), 3, 4), $arrays.arrayOf($plugins.loadClass("java.lang.Long"), 5, 6)))
# 将嵌套数组展平为单个列表,展平后的列表: [1, 2, 3, 4, 5, 6]
numbers.flatMap { |it| $arrays.toList(it) }.forEach { |it|
  $console.log(it)
}

Last modified: 31 August 2025