我有一个包含可能具有n级深度的对象的数组。
这样的事情：
const settings = [
{path: '/templates/pictures.php', url: '/pictures', label: 'Pictures', component: 'tab', template: 'default'},
{path: '/templates/post-article.php', url: '/user/:username', component: 'table', template: 'default', children:[
{path: '/templates/post-article-highlights.php', url: '/user/:username/highlights', component: 'table', template: 'default', children:[
{path: '/templates/post-article-highlights.php', url: '/user/:username/highlights', component: 'table', template: 'default'}
]}
]}
]
我需要在不同的数组上推送'Url'属性和children属性（如果存在），但保留深度。
所以新数组应如下所示：
const newArray = [
{url: '/pictures'},
{url: '/user/:username', children:[
{url: '/user/:username/highlights', children:[
{url: '/user/:username/highlights'}
]}
]}
]
你能帮助我吗？
由于
答案 0 :(得分：2)
您可以使用destructuring assignment获取所需的密钥，并使用Array#map获取仅包含一个属性的新数组，并通过检查子项使用Object.assign作为子项对象。存在，通过函数的递归调用从子节点中获取URL。
function getUrls(array) {
return array.map(({ url, children }) =>
Object.assign({ url }, children && { children: getUrls(children) }));
}
var settings = [{ path: '/templates/pictures.php', url: '/pictures', label: 'Pictures', component: 'tab', template: 'default' }, { path: '/templates/post-article.php', url: '/user/:username', component: 'table', template: 'default', children: [{ path: '/templates/post-article-highlights.php', url: '/user/:username/highlights', component: 'table', template: 'default', children: [{ path: '/templates/post-article-highlights.php', url: '/user/:username/highlights', component: 'table', template: 'default' }] }] }],
urls = getUrls(settings);
console.log(urls);.as-console-wrapper { max-height: 100% !important; top: 0; }
答案 1 :(得分：1)
const settings = [
{path: '/templates/pictures.php', url: '/pictures', label: 'Pictures', component: 'tab', template: 'default'},
{path: '/templates/post-article.php', url: '/user/:username', component: 'table', template: 'default', children:[
{path: '/templates/post-article-highlights.php', url: '/user/:username/highlights', component: 'table', template: 'default', children:[
{path: '/templates/post-article-highlights.php', url: '/user/:username/highlights', component: 'table', template: 'default'}
]}
]}
];
function childrenUrls(childrens){
return childrens.reduce(function(arr, obj){
var newObj = {url: obj.url};
if(obj.children) newObj.children = childrenUrls(obj.children);
return arr.push(newObj), arr;
}, []);
}
const newArray = childrenUrls(settings);
console.log(newArray);
答案 2 :(得分：0)
这是一个简单易懂的方法 一个小提琴的例子，你可以进一步测试它：
https://jsfiddle.net/eugensunic/pftkosb9/
<?php
include "db.php";
class Process extends Database
{
public function verify_email($table,$email){
//abc@gmail.com//
$regexp = "/^[a-z0-9_-]+(\.[a-z0-9_-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,4})$/";
if(!preg_match($regexp,$email)){
return "invalid_email";
}
//Check email already exists or not
$sql = "SELECT id FROM ".$table." WHERE u_email = '$email' LIMIT 1";
$query = mysqli_query($this->con,$sql);
$count = mysqli_num_rows($query);
if($count == 1){
return "already_exists";
}else{
return "ok";
}
}
public function insert_record($table,$input){
$sql = "";
$sql .= "INSERT INTO ".$table." ";
$sql .= "(".implode(",",array_keys($input)).") VALUES ";
$sql .= "('".implode("','", array_values($input))."')";
$query = mysqli_query($this->con,$sql);
$last_id = mysqli_insert_id($this->con);
if($query){
return $last_id;
}
}
public function send_activation_code($email,$act_code){
}
}
$obj = new Process;
if(isset($_POST["check_email"])){
$email = $_POST["email"];
echo $data = $obj->verify_email("user_info",$email);
exit();
}
if(isset($_POST["u_email"])){
echo $name = preg_replace("#[^A-Za-z]#i", "", $_POST["u_name"]);
echo $age = preg_replace("#[^0-9]#", "", $_POST["age"]);
echo $dateofbirth = preg_replace("#[^0-9]#", "", $_POST["dob"]);
echo $gender = preg_replace("#[^a-z ]#i", "", $_POST["gender"]);
echo $educationalqualification = preg_replace("#[^0-9A-Za-z ]#", "", $_POST["edq"]);
$lang = $_POST["lang"];
$count = COUNT($lang);
$languages = "";
for($i=0;$i<$count;$i++){
$languages .= $lang[$i].",";
}
$languages = substr($languages, 0, -1);
echo $languages = preg_replace("#[^A-Za-z,]#i", "", $languages);
echo $mobile = preg_replace("#[^0-9]#", "", $_POST["mobile"]);
echo $whatsapp = preg_replace("#[^0-9]#", "", $_POST["whatsapp"]);
echo $pincode = preg_replace("#[^0-9]#", "", $_POST["pincode"]);
echo $district = preg_replace("#[^A-Za-z]#i", "", $_POST["district"]);
echo $states = preg_replace("#[^A-Za-z]#i", "", $_POST["state"]);
echo $country = preg_replace("#[^A-Za-z]#i", "", $_POST["country"]);
echo $others = preg_replace("#[^A-Za-z]#i", "", $_POST["others"]);
$data = $obj->verify_email("user_info",$_POST["u_email"]);
if($data == "already_exists"){
echo "Email Already Exists";
exit();
}else{
echo $email = $_POST["u_email"];
}
echo $currentoccupation = preg_replace("#[^A-Za-z]#i", "", $_POST["current"]);
echo $workexperience = preg_replace("#[^A-Za-z]#i", "", $_POST["work"]);
echo $username = preg_replace("#[^A-Za-z0-9]#", "", $_POST["username"]);
echo $password = $_POST["password"];
echo $repassword = $_POST["repassword"];
//Start Validation from here
if(empty($name) || empty($age) || empty($dob) || empty($gender) || empty($educationalqualification) || empty($languages) ||
empty($mobile) || empty($whatsapp) || empty($pincode) || empty($district) || empty($state) || empty($country) ||
empty($currentoccupation) || empty($workexperience) || empty($username) || empty($password)){
echo "empty_fields";
exit();
}
if(strlen($password) < 9){
echo "password_too_short";
exit();
}
if($password != $repassword){
echo "password_not_same";
exit();
}else{
//hash password
$options = array('cost' => 12,);
echo $hash_password = password_hash($password,PASSWORD_DEFAULT, $options);
}
$signup_date = date("Y-m-d H:i:s");
$act_code = time().md5($email).rand(50000,1000000);
$act_code = str_shuffle($act_code);
$user = array("u_name"=>$name,"dob"=>$dateofbirth,"age"=>$age,"gender"=>$gender,"edq"=>$educationalqualification,"languages"=>$languages,"mobile"=>$mobile,"whatsapp"=>$whatsapp,"pincode"=>$pincode,"district"=>$district,"state"=>$states,"country"=>$country,"u_email"=>$email,"current"=>$currentoccupation,"work"=>$workexperience,"username"=>$username,"password"=>$hash_password,"signup_date"=>$signup_date,"last_login"=>$signup_date,"act_code"=>$act_code,"activated"=>"0");
$id = $obj->insert_record("user_info",$user);
if($id){
echo "Record Inserted Sucessfully";
}
}
?>