我正在尝试使用 JavaScript 验证表单,但代码似乎没有执行。正在使用运行良好的 php 处理表单。但是,验证不起作用。有人可以帮我解决这个问题。
<script>
function validateForm(){
var x = document.getElementById('name');
var email = document.getElementById('email');
var num = document.getElementById('number');
var size = document.getElementById('size');
var filter = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
var atpos=email.value.indexOf("@");
var dotpos=email.value.lastIndexOf(".");
if (x.value == null || x.value == "") {
alert("Please Enter your name");
x.foucs;
x.style.background = 'Yellow';
return false;
}
if(!filter.test(email.value){
alert('Please provide a valid email address');
email.focus;
email.value="";
return false;
}
if(num.value == null && num.value == ""){
alert('Please enter your mobile number');
num.focus();
}
if(!isNan(num.value){
alert('Please enter a valid number');
num.focus();
num.style.background();
return false;
}
return false;
}
</script>
这是我的html代码。
<form method="post" name="myForm " onsubmit="return validateForm()" action="myprocessingscript.php" >
<input type="text" name="name" placeholder="Name" class="text" id="name" />
<input name="email" placeholder="Email" type="text" class="text" id="email"/>
<input name="number" placeholder="Mobile Number" type="text" class="text" id="number"/>
<input name="size" placeholder="Size" type="text" class="text" id="size" />
<input type="Submit" value="Submit" class="button">