From fe66ad5f00ac5319e40c2c11b58535ff2b31af75 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=BC=A0=E6=B7=91=E8=8A=B3?= <2025575070@qq.com>
Date: Wed, 26 Oct 2022 00:19:23 +0800
Subject: [PATCH] 10-24

---
 .../10-24-\344\275\234\344\270\232.html"      | 152 ++++++++++++++++++
 ...4\350\256\260-\345\257\271\350\261\241.md" |  41 +++++
 2 files changed, 193 insertions(+)
 create mode 100644 "24\345\274\240\346\267\221\350\212\263/10-24-\345\257\271\350\261\241/10-24-\344\275\234\344\270\232.html"
 create mode 100644 "24\345\274\240\346\267\221\350\212\263/10-24-\345\257\271\350\261\241/10-24-\347\254\224\350\256\260-\345\257\271\350\261\241.md"
diff --git "a/24\345\274\240\346\267\221\350\212\263/10-24-\345\257\271\350\261\241/10-24-\344\275\234\344\270\232.html" "b/24\345\274\240\346\267\221\350\212\263/10-24-\345\257\271\350\261\241/10-24-\344\275\234\344\270\232.html"
new file mode 100644
index 0000000..27542d2
--- /dev/null
+++ "b/24\345\274\240\346\267\221\350\212\263/10-24-\345\257\271\350\261\241/10-24-\344\275\234\344\270\232.html"
@@ -0,0 +1,152 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta http-equiv="X-UA-Compatible" content="IE=edge">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Document</title>
+</head>
+<body>
+    <script>
+        const users = {
+                Alex: {
+                    email: 'alex@alex.com',
+                    skills: ['HTML', 'CSS', 'JavaScript'],
+                    age: 20,
+                    isLoggedIn: false,
+                    points: 30
+                },
+                Asab: {
+                    email: 'asab@asab.com',
+                    skills: ['HTML', 'CSS', 'JavaScript', 'Redux', 'MongoDB', 'Express', 'React', 'Node'],
+                    age: 25,
+                    isLoggedIn: false,
+                    points: 50
+                },
+                Brook: {
+                    email: 'daniel@daniel.com',
+                    skills: ['HTML', 'CSS', 'JavaScript', 'React', 'Redux'],
+                    age: 30,
+                    isLoggedIn: true,
+                    points: 50
+                },
+                Daniel: {
+                    email: 'daniel@alex.com',
+                    skills: ['HTML', 'CSS', 'JavaScript', 'Python'],
+                    age: 20,
+                    isLoggedIn: false,
+                    points: 40
+                },
+                John: {
+                    email: 'john@john.com',
+                    skills: ['HTML', 'CSS', 'JavaScript', 'React', 'Redux', 'Node.js'],
+                    age: 20,
+                    isLoggedIn: true,
+                    points: 50
+                },
+                Thomas: {
+                    email: 'thomas@thomas.com',
+                    skills: ['HTML', 'CSS', 'JavaScript', 'React'],
+                    age: 20,
+                    isLoggedIn: false,
+                    points: 40
+                },
+                Paul: {
+                    email: 'paul@paul.com',
+                    skills: ['HTML', 'CSS', 'JavaScript', 'MongoDB', 'Express', 'React', 'Node'],
+                    age: 20,
+                    isLoggedIn: false,
+                    points: 40
+                }
+        }
+            //1.统计在线人数
+            const usersKey = Object.keys(users);
+            var logNum = 0;
+            usersKey.forEach(usersKey => users[usersKey].isLoggedIn == true ? logNum ++ : logNum);
+            console.log('在线人数：'+logNum);
+
+            // const arr = {Alex,Asab,Brook,Daniel,John,Thomas,Paul} = users;
+            // const arr2 = [arr.Alex.isLoggedIn,arr.Asab.isLoggedIn,arr.Brook.isLoggedIn,arr.Daniel.isLoggedIn,
+            //             arr.John.isLoggedIn,arr.Thomas.isLoggedIn,arr.Paul.isLoggedIn];
+            // var logInSum = 0;
+            // for(let i = 1;i <= 7;i++){
+            //     arr2[i] == true ? logInSum += 1 : logInSum += 0;
+            // }
+            // console.log(logInSum);
+            
+
+            // 2.统计分数大于50的人数
+            var pointNum = 0;
+            usersKey.forEach(usersKey => users[usersKey].points > 50 ? pointNum ++ : pointNum);
+            console.log('分数大于50人数：'+pointNum);
+
+            // const arr3 = [arr.Alex.points,arr.Asab.points,arr.Brook.points,arr.Daniel.points,
+            //             arr.John.points,arr.Thomas.points,arr.Paul.points];
+            // var pointSum = 0;
+            // for(let i = 1;i <= 7;i++){
+            //     arr3[i] > 50 ? pointSum += 1 : pointSum += 0;
+            // }
+            // console.log(pointSum);
+            
+
+            //3.查找会MongoDB的人，并打印其名字
+            usersKey.forEach(
+                usersKey => users[usersKey].skills.includes('MongoDB') ? console.log('会MongoDB的'+usersKey) : null
+                );
+
+            // 4.查找同时会：MongoDB， Express，React，和Node 的人，并打印其名字
+            usersKey.forEach(
+                usersKey => 
+                users[usersKey].skills.includes('MongoDB','Express','React','Node') ? console.log('会好多的'+usersKey) : null
+                );
+
+
+        var collection = {
+            "1275":{
+                "album":"依然范特西",
+                "artist":"周杰伦",
+                "tracks":[
+                    "听妈妈的话",
+                    "千里之外"
+                ]
+                },
+            "2468":{
+                "album":"西界",
+                "artist":"林俊杰",
+                "tracks":[
+                    "西界",
+                    "杀手"
+                ]
+                },
+            "3245":{
+                "artist":"许嵩",
+                "tracks":[ ]
+            },
+            "5439":{
+                "album":"遇见"
+            }
+        }
+
+        // 1.定义方法更新记录:
+        // 要求：
+        // 1).如果传入的value是一个空值，表示将该属性删除
+        // 2).传入的prop如果是tracks，则代表添加，其他是修改
+        // 3245 tracks '有何不可'
+        // 3245 tracks ''   -->删
+        // 5439 artist '孙燕姿'
+        // 5439 album '逆光'
+        var updateRecords = (id,prop,value) => {
+                value == "" ? (delete collection[id][prop]) : 
+                (prop == "tracks" ? collection[id].tracks.push(value) : collection[id][prop] = value)
+        }
+
+        // updateRecords(3245,"tracks","");
+        // console.log(collection);
+        // updateRecords(3245,"tracks","掀起波澜~");
+        // console.log(collection);
+        updateRecords(3245,"artist","波澜哥");
+        console.log(collection);
+
+    </script>
+</body>
+</html>
\ No newline at end of file
diff --git "a/24\345\274\240\346\267\221\350\212\263/10-24-\345\257\271\350\261\241/10-24-\347\254\224\350\256\260-\345\257\271\350\261\241.md" "b/24\345\274\240\346\267\221\350\212\263/10-24-\345\257\271\350\261\241/10-24-\347\254\224\350\256\260-\345\257\271\350\261\241.md"
new file mode 100644
index 0000000..4baae02
--- /dev/null
+++ "b/24\345\274\240\346\267\221\350\212\263/10-24-\345\257\271\350\261\241/10-24-\347\254\224\350\256\260-\345\257\271\350\261\241.md"
@@ -0,0 +1,41 @@
+### 对象
+
+#### 创建对象
+
+```js
+//字面量
+var obj = {
+	name = 'JOJO';
+	action(){
+		ola = '欧拉';
+	}
+}
+//构造函数
+function func(name){
+    this.name = name;
+}
+var par = 'FF';
+```
+
+#### 对象解构
+
+```js
+//简单直接
+let{name} = obj;
+console.log(name);
+//取别名	
+let{name:personName} = obj
+console.log(parsonName);
+//先声明，后赋值	
+let name;
+({name} = obj);	-- 必须要加小括号
+//嵌套解构 --键值对的方式
+let{action:{ola}} = obj
+```
+
+
+
+
+
+
+
-- 
Gitee

