# IEH 程式隊 Workshop007 - 基礎程式4

## 線上網頁程式編輯器
(可使用10 Minute Email註冊： https://10minutemail.net/)
https://jsfiddle.net/

## 基礎網頁程式教學資源
https://www.w3schools.com/

## Developer 工具
popcat JS練習

javascript:(function() {     
    var event = new KeyboardEvent('keydown', {
        key: 'g'
    });

    setInterval(function(){
        for (i = 0; i < 100; i++) {
            document.dispatchEvent(event);
        }
    }, 1000);
})();

## 變數 -> 資料結構

### Variable 變數
`const today = "Saturday";`
### Array 陣列
`const daysOfWeek = ['Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday', 'Sunday'];
`
### JSON
https://tw.alphacamp.co/blog/json

{
  "daysOfWeek": [
    { "index": 1, "short": "Mon", "full": "Monday" },
    { "index": 2, "short": "Tue", "full": "Tuesday" },
    { "index": 3, "short": "Wed", "full": "Wednesday" },
    { "index": 4, "short": "Thu", "full": "Thursday" },
    { "index": 5, "short": "Fri", "full": "Friday" },
    { "index": 6, "short": "Sat", "full": "Saturday" },
    { "index": 7, "short": "Sun", "full": "Sunday" }
  ]
}

## 資料結構：日期練習
請建立一個日期的JSON資料結構，最終呈現如下資料
提示：此練習會使用到 迴圈 以及 if-else 技巧

Monday (Mon) is a Weekday.
Tuesday (Tue) is a Weekday.
Wednesday (Wed) is a Weekday.
Thursday (Thu) is a Weekday.
Friday (Fri) is a Weekday.
Saturday (Sat) is a Weekend.
Sunday (Sun) is a Weekend.

const weekData = {
  daysOfWeek: [
    { index: 1, short: "Mon", full: "Monday" },
    { index: 2, short: "Tue", full: "Tuesday" },
    { index: 3, short: "Wed", full: "Wednesday" },
    { index: 4, short: "Thu", full: "Thursday" },
    { index: 5, short: "Fri", full: "Friday" },
    { index: 6, short: "Sat", full: "Saturday" },
    { index: 7, short: "Sun", full: "Sunday" }
  ]
};

// Example usage: log each day with label "Weekday" or "Weekend"
weekData.daysOfWeek.forEach(day => {
  const type = (day.short === 'Sat' || day.short === 'Sun') ? 'Weekend' : 'Weekday';
  console.log(`${day.full} (${day.short}) is a ${type}.`);
});

### BMI計算機練習

* 使用HTML/CSS建構一個計算機外觀模板
* 使用JS建構一個計算機

條件：
* BMI＝體重(公斤)÷身高(公尺)÷身高(公尺)
* 當BMI≧24為過重，≧27是輕度肥胖，＞30是中度肥胖，在35以上就屬重度肥胖