22、继续javascript,左边选中的跳到右边

1、

<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
    <table>
        <tr>
            <td><select name="select1" multiple="multiple" id="first"
                size="10">
                    <option>选项一</option>
                    <option>选项二</option>
                    <option>选项三</option>
                    <option>选项四</option>
                    <option>选项五</option>
                    <option>选项六</option>
            </select></td>
            <td><input type="button" value="=>" id="moveRS"> <input
                type="button" value="==>" id="moveRA"> <input type="button"
                value="<=" id="moveLS"> <input type="button" value="<=="
                id="moveLA"></td>
            <td><select name="select2" multiple="multiple" id="second"
                size="10">

            </select></td>
        </tr>
    </table>
</body>
<script type="text/javascript">
    document.getElementById("moveRS").onclick = function() {
        var select1 = document.getElementById("first");
        var select2 = document.getElementById("second");
        var options = select1.options;
        for (var i = 0; i < options.length; i++) {
            if (options[i].selected) {
                select2.appendChild(options[i]);
                i--;
            }
        }
    }
    document.getElementById("moveRA").onclick = function() {
        var select1 = document.getElementById("first");
        var select2 = document.getElementById("second");
        var options = select1.options;
        for (var i = 0; i < options.length; i++) {

            select2.appendChild(options[i]);
            i--;

        }
    }
    document.getElementById("moveLS").onclick = function() {
        var select1 = document.getElementById("second");
        var select2 = document.getElementById("first");
        var options = select1.options;
        for (var i = 0; i < options.length; i++) {
            if (options[i].selected) {
                select2.appendChild(options[i]);
                i--;
            }
        }
    }
    document.getElementById("moveLA").onclick = function() {
        var select1 = document.getElementById("second");
        var select2 = document.getElementById("first");
        var options = select1.options;
        for (var i = 0; i < options.length; i++) {

            select2.appendChild(options[i]);
            i--;

        }
    }
</script>
</html>

2、计时器，开始和结束

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
<style type="text/css">
input {
     400px;
}
</style>
</head>
<body>
    <input type="text" id="two">
    <br />
    <input type="button" value="开始" onclick="setTime()">
    <input type="button" value="结束" onclick="endTime()">
    <script type="text/javascript">
        var id;
        function setTime() {
            if (!id)
                getTime();
        }
        function getTime() {
            //获得input输入框
            var two = document.getElementById("two");
            //创建出当前时间的Date对象
            var date = new Date();
            //将时间添加到input中
            two.value = date.toLocaleString();
            //ID=调用自己的setTimeout(getTime,1000)
            id=setTimeout(getTime, 1000);
        }
        function endTime() {
            clearTimeout(id);
            id = undefined;
        }
    </script>
</body>
</html>

3、使用xml对dom对象进行操作

<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
<style type="text/css">
#one {
    background-color: yellow;
     300px;
    height: 200px;
}

#two {
    background-color: blue;
     300px;
    height: 200px;
}

#three {
    background-color: green;
     300px;
    height: 200px;
}

#four {
    background-color: purple;
     300px;
    height: 200px;
}
</style>
<script type="text/javascript">
    //创建一个节点
    function createNode() {
        var div_1 = document.getElementById("one");
        var child = document.createElement("a");
        child.setAttribute("href", "http://www.baidu.com");
        child.innerHTML = "www.baidu.com";
        div_1.appendChild(child);
    }
    //删除一个div
    function deleteNode() {
        var div_2 = document.getElementById("two");
        var parent = div_2.parentNode;
        parent.removeChild(div_2);
    }
    //将div替换成图片
    function updateNode() {
        var div_3 = document.getElementById("three");
        var parent = div_3.parentNode;
        var img = document.createElement("img");
        img.setAttribute("src", "2.jpg");
        parent.replaceChild(img, div_3);
    }
    //复制div,并将复制后的div添加到末尾
    function copyNode() {
        var div_4 = document.getElementById("four");
        var cloneDiv = div_4.cloneNode(true);
        //true表示如果div中又子节点，那么连子节点也一起复制
        //如果是false表示只复制div不复制子节点
        var parent = div_4.parentNode;
        parent.appendChild(cloneDiv);
    }
</script>
</head>
<body>
    <div id="one">div1</div>
    <br />
    <div id="two">div2</div>
    <br />
    <div id="three">div3</div>
    <br />
    <div id="four">div4</div>
    <br />
    <hr>
    <input type="button" value="增加div中的元素" onclick="createNode()">
    <input type="button" value="删除div" onclick="deleteNode()">
    <input type="button" value="修改div中的元素" onclick="updateNode()">
    <input type="button" value="复制div" onclick="copyNode()">
</body>
</html>

4、牛逼的表达验证，为什么JS这么这么牛逼呀！

<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
<style type="text/css">
table, td {
    border: 1px solid blue;
}
</style>
</head>
<body>
    <form name="form1" onsubmit="return check()">
        <table>
            <tr>
                <th colspan="2">表单提交</th>

            </tr>
            <tr>
                <td>用户名</td>
                <td><input type="text" name="username"></td>
            </tr>
            <tr>
                <td>密码</td>
                <td><input type="password" name="password"></td>
            </tr>
            <tr>
                <td>年龄</td>
                <td><input type="text" name="age"></td>
            </tr>
            <tr>
                <td>性别</td>
                <td><input type="radio" value="1" name="sex">男 <input
                    type="radio" value="0" name="sex">女</td>
            </tr>
            <tr>
                <td>爱好</td>
                <td><input type="checkbox" value="吃饭" name="habit">吃饭 <input
                    type="checkbox" value="睡觉" name="habit">睡觉 <input
                    type="checkbox" value="打豆豆" name="habit">打豆豆</td>
            </tr>
            <tr>
                <td>学历</td>
                <td><select name="edu">
                        <option>---请选择学历----</option>
                        <option>小学</option>
                        <option>初中</option>
                        <option>高中</option>
                        <option>大学</option>
                </select></td>
            </tr>
            <tr>
                <td colspan="2"><input type="submit" value="提交"></td>
            </tr>
        </table>
    </form>
</body>
<script type="text/javascript">
    function check() {
        var a = true;
        a = (checkUserName() & checkEdu() & checkPassword() & checkAge())
        return a ? true : false;
    }
    //验证用户名
    function checkUserName() {
        var username = document.form1.username.value;
        var regex = /^[a-zA-Z][a-zA-Z_0-9]{2,9}$/;
        if (regex.test(username)) {
            removeError(document.form1.username);
            return true;
        } else {
            addError(document.form1.username, "用户名只能以字母开头");
            return false;
        }
    }
    //验证密码
    function checkPassword() {
        var password = document.form1.password.value;
        var regex = /^.{6,10}$/;
        if (regex.test(password)) {
            removeError(document.form1.password);
            return true;
        } else {
            addError(document.form1.password, "请输入6-10位的密码")
            return false;
        }
    }
    //验证年龄
    function checkAge() {
        var age = document.form1.age.value;
        var regex = /^d{1,3}$/;
        if (regex.test(age)) {
            removeError(document.form1.age);
            return true;
        } else {
            addError(document.form1.age, "年龄输入的不对");
            return false;
        }
    }
    //验证学历
    function checkEdu() {
        var edu = document.form1.edu;
        if (edu.selectedIndex) {
            removeError(edu);
            return true;
        } else {
            addError(edu, "请选择学历");
            return false;
        }
    }

    //添加错误提示标记
    function addError(where, what) {
        if (where.parentNode.getElementsByTagName("font")[0]) {
            return;
        }
        var font = document.createElement("font");
        font.setAttribute("color", "red");
        font.innerHTML = what;
        where.parentNode.appendChild(font);
    }
    //删除错误标记
    function removeError(where) {
        var font = where.parentNode.getElementsByTagName("font")[0];
        if (font) {
            font.parentNode.removeChild(font);
        }
    }
</script>
</html>

5、对表格中的元素进行排序

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
<style type="text/css">
table,tr,td {
    border: 1px solid blue;
}
</style>
<script type="text/javascript">
    function dataSort() {
        //1获得表格中所有的行
        var table = document.getElementsByTagName("table")[0];
        var rows = table.rows;
        //2创建一个新的数组，将需要排序的行装入
        var arr = [];
        for ( var i = 1; i < rows.length; i++) {
            arr[i - 1] = rows[i];
        }
        //3对新的数组排序
        arr.sort(abc);
        //4排序好的数组遍历插回表格中
        for ( var i = 0; i < arr.length; i++) {
            table.appendChild(arr[i]);
        }
    }
    function abc(a, b) {
        return +a.cells[1].innerHTML - b.cells[1].innerHTML;
    }
</script>
</head>
<body>
    <table>
        <tr>
            <td>姓名</td>
            <td><a href="javascript:void(0)" onclick="dataSort()">年龄</a></td>
            <td>电话</td>
        </tr>
        <tr>
            <td>王金鉴</td>
            <td>11</td>
            <td>18341893452</td>
        </tr>
        <tr>
            <td>冯旭</td>
            <td>12</td>
            <td>18341893453</td>
        </tr>
        <tr>
            <td>李俊峰</td>
            <td>15</td>
            <td>18341893373</td>
        </tr>
        <tr>
            <td>赵维真</td>
            <td>22</td>
            <td>18341893451</td>
        </tr>
        <tr>
            <td>孟凯妮</td>
            <td>20</td>
            <td>18341893476</td>
        </tr>
        <tr>
            <td>邓一鸣</td>
            <td>19</td>
            <td>18341893321</td>
        </tr>
    </table>
</body>
</html>

6、二级联动

<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>

</head>
<body>
    <select id="province">
        <option>----请选择省----</option>
    </select>
    <select id="city">
        <option>----请选择市----</option>
    </select>
</body>
<script type="text/javascript">
    var json = {
        "辽宁省" : [ "大连市", "阜新市", "沈阳市", "盘锦市", "营口市" ],
        "吉林省" : [ "长春市", "吉林市", "四平市" ]
    };
    //遍历josn中的所有key,把key封装到option对象当中,把option对象添加到省的select中去
    //1获得省的select对象
    //2遍历json中的所有key
    //3key封装到option对象中
    //添加
    var province = document.getElementById("province");
    var city = document.getElementById("city");
    for ( var Key in json) {
        var option = document.createElement("option");
        option.innerHTML = Key;
        province.appendChild(option);
    }
    //为province添加onchange事件
    province.onchange = function() {
        //每次联动的时候需要清除city select中的数据
        city.options.length = 1;
        //1.获得用户选择的省
        var provinceKey = this.options[this.selectedIndex].innerHTML;
        //2.将选择的省去json中取得对应的市数组
        var cities = json[provinceKey];
        //3.遍历数组中的所有市，封装到option对象中
        for (var i = 0; i < cities.length; i++) {
            var option = document.createElement("option");
            //4、将option添加到city中
            option.innerHTML = cities[i];
            city.appendChild(option);
        }

    }
</script>
</html>

7、隔行变色

为什么我们这么牛逼什么玩意都会做，也是日了狗了

8、跨页面通讯，为什么我们这么牛逼，

<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<frameset rows="30%,70%">
    <frame src="top.html" />
    <frameset cols="30%,*">
        <frame src="left.html"/>
        <frame src="main.html"/>
    </frameset>
</frameset>
</html>

下边是top.html

<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
<h1>标签页</h1>
</body>
</html>

下边是left.html

<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
<script type="text/javascript">
    function check() {
        var tr = document.createElement("tr");
        var name = document.form1.name.value;
        var age = document.form1.age.value;
        var sex = document.form1.sex.value;
        tr.innerHTML = "<td>" + name + "</td><td>" + age + "</td><td>" + sex
                + "</td>"
        window.parent.frames[2].document.getElementsByTagName("table")[0]
                .appendChild(tr);
    }
</script>
</head>
<body>
    <form name="form1" onsubmit="check()">
        姓名：<input type="text" name="name"><br /> 年龄：<input
            type="text" name="age"><br /> 性别：<input type="text"
            name="sex"><input type="button" value="选择"
            onclick="window.open('select.html')"> <input type="submit"
            value="提交">
    </form>
</body>
</html>

下边是main.html

<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
<table>
        <tr>
            <td>姓名</td>
            <td><a href="javascript:void(0)" onclick="dataSort()">年龄</a></td>
            <td>性别</td>
        </tr>
        <tr>
            <td>王金鉴</td>
            <td>11</td>
            <td>男</td>
        </tr>
        <tr>
            <td>冯旭</td>
            <td>12</td>
            <td>男</td>
        </tr>
        <tr>
            <td>李俊峰</td>
            <td>15</td>
            <td>男</td>
        </tr>
        <tr>
            <td>赵维真</td>
            <td>22</td>
            <td>男</td>
        </tr>
        <tr>
            <td>孟凯妮</td>
            <td>20</td>
            <td>女</td>
        </tr>
        <tr>
            <td>邓一鸣</td>
            <td>19</td>
            <td>男</td>
        </tr>
    </table>
</body>
</html>

9、流氓广告，鼠标走到哪里，广告就跟到哪里

<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
<style type="text/css">
div {
    border: 1px solid red;
}

#one {
     400px;
    height: 400px;
}

#two {
    background-color: pink;
     50px;
    height: 50px;
}
</style>
</head>
<body>
    <div id="one">
        <a href="隔行变色.html">这里有你想看的内容</a> <a href="selectMove.html">体育老师视频</a>
    </div>
    <div id="two">
        <a href="formAdd.html" target="_blank" onclick="remove(this)">流氓广告</a>
    </div>
</body>
<script type="text/javascript">
    document.getElementById("one").onmousemove = function(event) {
        var x = event.clientX;
        var y = event.clientY;
        var div2 = document.getElementById("two");
        div2.style.position = "absolute";
        div2.style.top = (y - 25) + "px";
        div2.style.left = (x - 25) + "px";
    }
    function remove(a){
        a.parentNode.style.display="none";
    }
</script>
</html>

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原文地址：https://www.cnblogs.com/weizhen/p/5887256.html