i was just looking for basic tutorial for js , this is the code i have to read file from a txt file .
我只是在寻找js的基本教程,这是我必须从txt文件中读取文件的代码。
<script type="text/javascript">
var xhr= new XMLHttpRequest();
xhr.open("GET","note.txt",false);
xhr.onreadystatechange= function (){
if(xhr.readyState===4){
alert(xhr.responseText);
}
xhr.send(null);
}
</script>
this is in head of a php file and note.txt in same directory , so i expect to get an alert but dont get any response , can someone help me with this whats wrong ?
这是在同一目录中的php文件和note.txt的头部,所以我希望得到一个警报,但没有得到任何回应,有人可以帮助我这是什么错?
1 个解决方案
#1
1
xhr.onreadystatechange= function (){
if(xhr.readyState===4){
alert(xhr.responseText);
}
xhr.send(null);
}
you are calling send()
in the handler for onreadystatechange
.
你在onreadystatechange的处理程序中调用send()。
#1
1
xhr.onreadystatechange= function (){
if(xhr.readyState===4){
alert(xhr.responseText);
}
xhr.send(null);
}
you are calling send()
in the handler for onreadystatechange
.
你在onreadystatechange的处理程序中调用send()。