jQuery怎么给div点击事件调用函数

<script src="Sortable.js"></script>
<script src="jquery.js"></script>

<body>
        <div id="sotr" class="sotr">
            <a data-index='0' style="background: #aa0000;">1</a>
            <a data-index='1' style="background: #005500;">2</a>
            <a data-index='2' style="background: #aa5500;">3</a>
            <a data-index='3' style="background: #59d57f;">4</a>
            <a data-index='4' style="background: #00ffff;">5</a>
            <a data-index='5' style="background: #ff007f;">6</a>
            <a data-index='6' style="background: #ffff7f;">7</a>
            <a data-index='7' style="background: #5500ff;">8</a>
        </div>
        <div id="click" class="click">提交</div>
        <div id="upset" class="upset">打乱</div>
    </body>
    <script>
        var foo = document.getElementById("sotr");
        Sortable.create(foo, {
            group: "adva"
        });

        function shffle() {
            let array = $('#sotr a')
            let usedIndex = []
            let newArray = []
            let validCount = []

            top:
                while (validCount < array.length) {
                    let index = Math.floor(Math.random() * array.length)
                    if (usedIndex.indexOf(index) > -1) {
                        continue top
                    } else {
                        usedIndex.push(index)
                    }
                    validCount++
                    newArray.push(array[index])
                }
            return newArray
        }
        let newarr = shffle()
        for (let item of newarr) {
            $('#sotr').append(item)
        }
        $('#upset').on('click', shffle)
    </script>

我想达到点击“打乱“DIV执行函数，打乱排序，现在只能刷新打乱

img

点击打乱按钮，需要重新执行这段代码


let newarr = shffle()
                for (let item of newarr) {
                    $('#sotr').append(item)
                }

代码修改如下：


            var foo = document.getElementById("sotr");
            Sortable.create(foo, {
                group: "adva"
            });

            function shffle () {
                let array = $('#sotr a')
                let usedIndex = []
                let newArray = []
                let validCount = []

                top:
                while (validCount < array.length) {
                    let index = Math.floor(Math.random() * array.length)
                    if (usedIndex.indexOf(index) > -1) {
                        continue top
                    } else {
                        usedIndex.push(index)
                    }
                    validCount++
                    newArray.push(array[index])
                }
                return newArray
            }

            function reset () {
                let newarr = shffle()
                for (let item of newarr) {
                    $('#sotr').append(item)
                }
            }

            reset() // 初始执行一次打乱

            $('#upset').on('click', reset) // 点击执行一次打乱

你的shffle函数只产生了新数组，没有刷新界面。