我没有得到ClojureScript的想法.例如,我正在编写一个Web应用程序,我需要编写一些javascript.我应该使用ClojureScript为我生成javascript吗?寻求一些指导.
谢谢
我正在阅读这篇文章" http://lethain.com/introduction-to-architecting-systems-for-scale/ ".最后,作者提到了平台层.我不明白这一层的范围及其优点.你能澄清一下吗?
谢谢
在动手节点一书中,作者举了一个阻塞I\O的例子,
var post = db.query("select * from posts where id = 1");
doSomethingWithPost(post)
doSomethingElse();
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作者说在第1行完成执行db查询之前没有执行任何操作
然后,他显示了非阻塞代码
callback = function(post){
doSomethingWithPost(post)
}
db.query("select * from posts where id = 1",callback);
doSomethingElse();
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在查询执行之前,这也不会阻塞吗?
因此,在查询完成之前,不会执行doSomethingElse.
我正在制作一个简单的ajax请求但由于某种原因request.is_ajax返回false.我正在使用jquery和Django开发服务器.
$('#save').click(
function()
{
$.ajax({
type: "POST",
url: "/order/start",
});
});
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在views.py中
if request.POST and 'save' in request.POST :
if request.is_ajax()== True:
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但是,它不会返回true,在runserver上我看到错误
Exception happened during processing of request from ('127.0.0.1', 1625)
Traceback (most recent call last):
File "c:\python27\lib\SocketServer.py", line 284, in _handle_request_noblock
self.process_request(request, client_address)
File "c:\python27\lib\SocketServer.py", line 310, in process_request
self.finish_request(request, client_address)
File "c:\python27\lib\SocketServer.py", line 323, in finish_request
self.RequestHandlerClass(request, client_address, self)
File "c:\python27\lib\site-packages\django\core\servers\basehttp.py", line 56
, in __init__
BaseHTTPRequestHandler.__init__(self, *args, **kwargs)
File "c:\python27\lib\SocketServer.py", line 641, in __init__
self.finish()
File …Run Code Online (Sandbox Code Playgroud) 这条线grid.editRow(id, true);- 给出错误.
uncaught TypeError: Object #<Object> has no method 'editRow'
怎么解决这个问题?
<script type="text/javascript">
jQuery(document).ready(function () {
jQuery("#list").jqGrid({
url: '/Home/GridData/',
datatype: 'json',
mtype: 'POST',
colNames: ['Id', 'Votes', 'Title'],
colModel: [
{ name: 'Id', index: 'Id', width: 40, align: 'left' },
{ name: 'Votes', index: 'Votes', width: 40, align: 'left', editable: true, edittype: 'text' },
{ name: 'Title', index: 'Title', width: 400, align: 'left'}],
pager: jQuery('#pager'),
rowNum: 10,
rowList: [10, 20, 50],
sortname: 'Id',
sortorder: "desc",
viewrecords: true,
imgpath: …Run Code Online (Sandbox Code Playgroud)