array/js_0608_practice01_array.html

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<head>
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    <title>Document</title>
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<body>
    <script>
        //array basic
        //array 用來處理不夠的變數

        //method 1:
        //let studnet1 = 1
        //let student2 = 2
        //let student3 = 3
        //let student4 = 4
        
        //method 2:
        //let studentArray =[1,2,3,4,5];


        //while 迴圈練習

        //要跑8次迴圈練習
        let jenny = 1;
        let lottery = [];
        while (i <= 8) {
            let num = Math.floor(Math.random()* (8 - 1)) +1;

        if(lottery.indexOf(num)<0){
                lottery.push(num);
                document.write(`第${jenny}個號碼=>$(num)<br>`); 
            }
         
            i++;
        }

    //i++;
    //console.log(lottery)
        

    </script>
</body>
</html>