我有一张表格
<form id="Register" method="post" onsubmit="return validateForm()">
<p><label>Your Email</label><input type="text" name="email"/></p>
<p style="margin-left:27%;"><input type="submit" name="submit" value="Submit" /></p>
</form>
我使用此表单的javascript验证是
function validateForm() {
var x = document.forms["Register"]["email"].value;
var atpos = x.indexOf("@");
var dotpos = x.lastIndexOf(".");
if (atpos < 1 || dotpos < atpos + 2 || dotpos + 2 >= x.length) {
alert("Not a valid e-mail address");
return false;
}
}
我有两个或更多表格
<form id="Login" method="post" >
<p><label>Email</label><input type="text" name="Log_email" /></p>
<p style="margin-left:27%;"><input type="submit" name="submit" value="Login" /></p>
</form>
<form id="forgot" method="post">
<p><label>Your Email</label><input type="text" name="email"/></p>
<p style="margin-left:27%;"><input type="submit" name="submit" value="Submit" /></p>
</form>
如何为所有这些表格重写javascript验证。
答案 0 :(得分:1)
JSFIDDLE:http://jsfiddle.net/g2frB/1/
JS CODE:
$(".emlfrm").on("submit",function()
{
var x = $(this).find(".eml").eq(0).val();
var atpos = x.indexOf("@");
var dotpos = x.lastIndexOf(".");
if (atpos < 1 || dotpos < atpos + 2 || dotpos + 2 >= x.length) {
alert("Not a valid e-mail address");
return false;
}
});
HTML CODE:
<form class="emlfrm" id="Login" method="post" >
<p><label>Email</label><input type="text" class="eml" name="Log_email" /></p>
<p style="margin-left:27%;"><input type="submit" name="submit" value="Login" /></p>
</form>
<form class="emlfrm" id="forgot" method="post">
<p><label>Your Email</label><input type="text" class = "eml"name="email"/></p>
<p style="margin-left:27%;"><input type="submit" name="submit" value="Submit" /></p>
</form>
答案 1 :(得分:1)
如果您在所有表单中使用相同的电子邮件名称,而不是使用所有表单中的'this.id'参数调用验证函数
onsubmit="return validateForm(this.id)"
并修改代码:
function validateForm(id) {
var x = document.forms[id]["email"].value;
var atpos = x.indexOf("@");
var dotpos = x.lastIndexOf(".");
if (atpos < 1 || dotpos < atpos + 2 || dotpos + 2 >= x.length) {
alert("Not a valid e-mail address");
return false;
}
}
答案 2 :(得分:0)
在您的电子邮件字段中添加一个类并验证此项