Javascript 简单if循环在jquery中不起作用
我的代码如下所示Javascript 简单if循环在jquery中不起作用,javascript,jquery,forms,if-statement,Javascript,Jquery,Forms,If Statement,我的代码如下所示 <html> <form method="post"> <table class="table table-bordered"> <tr> <th colspan='3' style="text-align:center;">Enter Subject wise weightage </th> </tr&g
<html>
<form method="post">
<table class="table table-bordered">
<tr>
<th colspan='3' style="text-align:center;">Enter Subject wise weightage
</th>
</tr>
<tr>
<td colspan='2'><input type='hidden' name='Subject[]' value='ANATOMY' />ANATOMY
</td>
<td><input type='number' class='form-control individual' name='q_num[]' max=8 sub='ANATOMY'placeholder='Enter the number of Questions'/> <p class='text-danger ANATOMY_error'></p>
</td>
</tr>
<tr>
<td colspan='2'><input type='hidden' name='Subject[]' value='BIOCHEMISTRY' />BIOCHEMISTRY
</td>
<td><input type='number' class='form-control individual' name='q_num[]' max=4 sub='BIOCHEMISTRY'placeholder='Enter the number of Questions'/><p class='text-danger BIOCHEMISTRY_error'></p>
</td>
</tr>
<tr>
<td colspan='2'><input type='hidden' name='Subject[]' value='PHYSIOLOGY' />PHYSIOLOGY
</td>
<td><input type='number' class='form-control individual' name='q_num[]' max=3 sub='PHYSIOLOGY'placeholder='Enter the number of Questions'/><p class='text-danger PHYSIOLOGY_error'></p>
</td>
</tr>
<tr>
<td colspan='2'><input type='hidden' name='Subject[]' value='ORTHOPEDICS' />ORTHOPEDICS
</td>
<td><input type='number' class='form-control individual' name='q_num[]' max=2 sub='ORTHOPEDICS'placeholder='Enter the number of Questions'/><p class='text-danger ORTHOPEDICS_error'></p>
</td>
</tr>
</table>
</form>
这以前对我有用，但现在我无法让它工作。模糊函数启动并正常工作，直到if循环启动。这里的问题是，您的值是字符串，并且您将它们作为整数进行比较。因此，在进行比较时，您需要在途中转换它们：
if(parseInt(e) > parseInt(m)){
//and so on
}
它的工作后，我修改了代码如下
jQuery(document).ready(function($){
$('.individual').blur(function(){
var m =parseInt($(this).attr("max"));
var e = parseInt($(this).val());
var s= $(this).attr("sub");
var error = "."+ s +"_error";
if(e>m){
$(error).text("Please enter low value");
}else{
$(error).text('');
}
});
});
谢谢..请定义不工作。请注意，.attr和.val返回字符串，比较字符串可能会得到意想不到的结果。效果很好。非常感谢。现在它起作用了。
jQuery(document).ready(function($){
$('.individual').blur(function(){
var m =parseInt($(this).attr("max"));
var e = parseInt($(this).val());
var s= $(this).attr("sub");
var error = "."+ s +"_error";
if(e>m){
$(error).text("Please enter low value");
}else{
$(error).text('');
}
});
});