HTML DOM model: Before the w3c dom model (specification) appeared, each browser supported some DOM operations
Select object
Attributes: selectedIndex: indicates the subscript of the option currently selected by the user (from 0 Start) length: Get or set the length of the option options: The value is an array, each array element is an option object, representing all the options of the drop-down list Option object
Attributes: text: Description of the option value: The value of the option selected: When the value is true, it means that this option is selected by the user and the Option object can be created as follows
var obj = new Option(text, value);
<html>
<head>
<script src="myjs.js"></script>
<script>
function f1(){
//alert($('s1').selectedIndex);
//alert($('s1').length);
var arr = $('s1').options;
for(i=0;i<arr.length;i++){
alert(arr[i].text +' '+ arr[i].value);
}
}
function f2(){
var op = new Option('武汉','wh');
$('s1').options[$('s1').options.length] = op;
}
</script>
</head>
<body>
<select id="s1" style="width:120px;" name="s1">
<option value="bj">北京</option>
<option value="sh">上海</option>
<option value="xa">西安</option>
<option value="sz">深圳</option>
<option value="tj">天津</option>
</select>
<input type="button" value="点我吧" onclick="f2();"/>
</body>
</html>Cascading drop-down list
<html>
<head>
<script src="myjs.js"></script>
<script>
var arr = new Array();
arr[0] = [new Option('--方向--','-1')];
arr[1] = [new Option('商务英语','en1'),
new Option('专业英语','en2')];
arr[2] = [new Option('计算机软件','comp1'),
new Option('计算机网络','comp2'),
new Option('计算机应用','comp3')];
//数组的创建放在外面执行效率更高
function change(index){
$('s2').length = 0;
for(i=0;i<arr[index].length;i++){
$('s2').options[i] = arr[index][i];
}
}
</script>
</head>
<body>
<select id="s1" style="width:120px;" onchange="change(this.selectedIndex);">
<!-- this表示绑定该事件的节点,在这里表示<select>节点-->
<option value="-1">--专业--</option>
<option value="english">英语</option>
<option value="computer">计算机</option>
</select>
<select id="s2" style="width:120px;">
<option value="-1">--方向--</option>
</select>
</body>
</html>Table object is equivalent to
<html>
<head>
<script src="myjs.js"></script>
<script>
//html dom模型做
function addRow1(){
var tr = $('t1').insertRow($('t1').rows.length);
var td1 = tr.insertCell(tr.cells.length);
var td2 = tr.insertCell(tr.cells.length);
td1.innerHTML = $('name').value;
td2.innerHTML = $('salary').value;
//tr.style.backgroundColor = 'red'; //两种样式1
//tr.className = 'selected'; //两种样式2
$('t1').rows[1].cells[1].style.backgroundColor = 'red';//把某一格加亮
}
//采用w3c dom模型做
function addRow2(){
var tr1 = document.createElement('tr');
var td1 = document.createElement('td');
var td2 = document.createElement('td');
td1.innerHTML = $('name').value;
td2.innerHTML = $('salary').value;
tr1.appendChild(td1);
tr1.appendChild(td2);
$('t1').appendChild(tr1);
}
</script>
<style>
.selected{
background-color:red;
}
</style>
</head>
<body>
<table id="t1" border="1" cellpadding="0" cellspacing="0" width="60%">
<tr><td>姓名</td><td>工资</td></tr>
<tr><td>zs</td><td>2000</td></tr>
<tr><td>ls</td><td>3000</td></tr>
<tr><td>wu</td><td>4000</td></tr>
</table><br/>
姓名：<input type="text" name="name" id="name"/>
工资：<input type="text" name="salary" id="salary"/>
<input type="button" value="添加" onclick="addRow2();"/>
</body>
</html>The above is the content of Xiaoqiang’s HTML5 mobile development road (31) - JavaScript review 6. For more related content, please pay attention to the PHP Chinese website (www.php.cn)! |
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DVWA
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Dreamweaver Mac version
Visual web development tools
SecLists
SecLists is the ultimate security tester's companion. It is a collection of various types of lists that are frequently used during security assessments, all in one place. SecLists helps make security testing more efficient and productive by conveniently providing all the lists a security tester might need. List types include usernames, passwords, URLs, fuzzing payloads, sensitive data patterns, web shells, and more. The tester can simply pull this repository onto a new test machine and he will have access to every type of list he needs.
