JS method to log in by pressing the Enter key_javascript skills
The example in this article describes the JS method of pressing the Enter key to log in. This function has a very wide range of practical value. Share it with everyone for your reference. The specific method is as follows:
Method 1:
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
<title>Check Score</title>
<script language="JavaScript">
function keyLogin(){
if (event.keyCode==13) //回车键的键值为13
document.getElementByIdx_x("input1").click(); //调用登录按钮的登录事件
}
</script>
</head>
<body onkeydown="keyLogin();">
<input id="input1" value="登录" type="button" onClick="alert('调用成功！')">
</body>
</html>
Method 2:
<script>
function KeyDown()
{
if (event.keyCode == 13)
{
event.returnValue=false;
event.cancel = true;
Form1.btnsubmit.click();
}
}
</script>
Usage:
<form name="Form1" method=""> 用户名:<INPUT TYPE=text SIZE=20 maxlength = 8 onkeydown=KeyDown()> 密码:<INPUT TYPE=password SIZE=20 maxlength = 8 onkeydown=KeyDown()> <input type="submit" name="btnsubmit" value="提交" /> </form>
Method 3:
Any website page has a login interface. Many times after entering the username and password, you have to use the mouse to click on a button or link similar to login. Only in this way can you enter the website and do what you like to do.
Sometimes I wonder if I can just type in what I need to enter and just hit Enter to execute the login function? The solution is as follows:
ss.html page code:
<html>
<head>
<title></title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<link rel="stylesheet" href="css/text.css" type="text/css">
</head>
<body bgcolor="#FFFFFF" text="#000000" leftmargin="0" topmargin="0" marginwidth="0" marginheight="0" onkeydown="on_return();">
<form name ="loginForm" method="post" action="fuck.html">
<table width="100%" border="0" cellspacing="0" cellpadding="0">
<tr>
<td width="69%" height="30"><span class="font_04">帐户名</span>
<input type="text" name="userName" size="18.5">
</td>
</tr>
<tr>
<td width="69%" height="30"><span class="font_04">密 码</span>
<input type="password" name="pwd" >
</td>
</tr>
<tr>
<td width="31%" height="30">
<a id="sub" onClick='check()' >
登陆</a></td>
</tr>
</table>
</form>
</body>
</html>
<script language="javascript">
function check() {
var formname=document.loginForm;
if (formname.userName.value == "") {
alert("请输入用户名！");
formname.userName.focus();
return false;
}
if (formname.pwd.value == "") {
alert("请输入密码！");
formname.pwd.focus();
return false;
}
formname.submit();
}
//回车时，默认是登陆
function on_return(){
if(window.event.keyCode == 13){
if (document.all('sub')!=null){
document.all('sub').click();
}
}
}
</script>
HereNote: In
we added the onkeydown attribute, so that after we enter the content, we can directly execute the JS method on_return() by pressing the key. Because window.event.keyCode if If it is 13, it means the Enter key, so we judge whether the key we press is the Enter key. If it is, we will look for the 'sub' attribute. If we find the click method, that's it.I hope the method described in this article will be helpful to everyone’s web programming design.
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