---
# System prepended metadata

title: 1/25 JavaScript
tags: [JavaScript]

---

# 1/25 JavaScript 
###### tags: `JavaScript`

# 39 單一選擇結構if
![](https://i.imgur.com/erN6AUe.png)
# 51 函數的功能
![](https://i.imgur.com/RxHa0tf.png)
# 52 函數宣告
![](https://i.imgur.com/6vmXZsC.png)
# 56 變數的範圍
以function為基準
var 在function外面就是global變數
裡面是local
![](https://i.imgur.com/WgLX6Sz.png)
![](https://i.imgur.com/DqEjDBY.png)
(02varScope.html)
# 59 JavaScript物件種類
![](https://i.imgur.com/VJ55xxm.png)
(參考)![](https://i.imgur.com/akaih6W.png)
(參考64)![](https://i.imgur.com/3jnCwiy.png)
# 60  JavaScript物件的屬性與方法
![](https://i.imgur.com/wW18Yh1.png)
# 61 Global物件
![](https://i.imgur.com/dHIEHfC.png)
https://www.w3schools.com/jsref/jsref_obj_global.asp
# 62 字串物件(String Object)1/3
index 搜尋 find SELECT
![](https://i.imgur.com/nzxw4qT.png)![](https://i.imgur.com/CxgACjZ.png)
(02stringObject.html)
# 63 字串物件屬性與方法
![](https://i.imgur.com/kRTewWD.png)
# 64 取得標籤元素屬性值
![](https://i.imgur.com/TYWgn5K.png)
(參考)![](https://i.imgur.com/9m8iXmg.png)
(03checkPassword.html)
(031checkName.html
![](https://i.imgur.com/7le5esZ.png)
)
# 66.67 String物件(String Object)2/3
![](https://i.imgur.com/CbRF1Tk.png)
![](https://i.imgur.com/7GnQwQL.png)
# 68  Date物件
![](https://i.imgur.com/8zVmiQ6.png)
![](https://i.imgur.com/5VT3Fgz.png)
# 69 Date物件
![](https://i.imgur.com/Nt4kklJ.png)
# 70 Object物件
{}=物件 ""=字串
![](https://i.imgur.com/Oxp5zyv.png)
# 71 for/in迴圈
![](https://i.imgur.com/kPto7WQ.png)
# 72 Array物件
![](https://i.imgur.com/S9oqIDJ.png)
# 73 Array物件的使用
![](https://i.imgur.com/OxhZbhf.png)
# 74 Array物件的方法
https://www.w3schools.com/js/js_arrays.asp
![](https://i.imgur.com/397ujo1.png)![](https://i.imgur.com/8fmXD7A.png)
https://www.w3schools.com/jsref/jsref_push.asp
https://www.w3schools.com/jsref/jsref_pop.asp
![](https://i.imgur.com/FEwa7YO.png)
# 75 Array物件的方法範例
![](https://i.imgur.com/GGTK6Pv.png)
![](https://i.imgur.com/wllabR1.png)
![](https://i.imgur.com/e4caP5P.png)
排序http://notepad.yehyeh.net/Content/Algorithm/Sort/Sort.php
# 76 JSON字串規則
![](https://i.imgur.com/3oVqgdW.png)
https://www.json.org/json-en.html
# 77  JSON字串規則
如果是物件可以不用""
但是json的格式要""
![](https://i.imgur.com/e7cZxKt.png)
![](https://i.imgur.com/gdellM6.png)
![](https://i.imgur.com/mbdDYu6.png)

# 78  json
![](https://i.imgur.com/dJlc7NZ.png)
# 79 讀取json中的資料
![](https://i.imgur.com/R9OqbvJ.png)
![](https://i.imgur.com/WXDfF8L.png)
# 題外話
AJAX
非同步傳輸
# 80 JSON的方法
![](https://i.imgur.com/hHYLuYR.png)
# 81 JSON的方法範例
![](https://i.imgur.com/u4ZZidk.png)
![](https://i.imgur.com/RsEPNW8.png)
# 82 Math物件
![](https://i.imgur.com/84rTtAQ.png)
# 83 RegExp物件
![](https://i.imgur.com/YQnhlfT.png)
# 84.85 正規式字元
![](https://i.imgur.com/9a8CYyS.png)![](https://i.imgur.com/8bIaloI.png)
![](https://i.imgur.com/Ib6oLb5.png)

# 86 正規是字元(範例)
![](https://i.imgur.com/roAKhjh.png)
![](https://i.imgur.com/n8ssVIt.png)
密碼:至少有一個數字
![](https://i.imgur.com/TXStg3H.png)
![](https://i.imgur.com/gKoRXvo.png)
