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socket.io and session?
...lashsocket transport in my code.
To make it work, in the express/connect side, I explicitly define the session store so I can use it inside socket:
MemoryStore = require('connect/middleware/session/memory'),
var session_store = new MemoryStore();
app.configure(function () {
app.use(express.sessi...
is vs typeof
...aled class Class2 { }
struct Struct1 { }
struct Struct2 { }
Inference:
Calling GetType on structs is slower. GetType is defined on object class which can't be overridden in sub types and thus structs need to be boxed to be called GetType.
On an object instance, GetType is faster, but very margi...
Multiple file upload in php
...TML
create div with id='dvFile';
create a button;
onclick of that button calling function add_more()
JavaScript
function add_more() {
var txt = "<br><input type=\"file\" name=\"item_file[]\">";
document.getElementById("dvFile").innerHTML += txt;
}
PHP
if(count($_FILES["item...
Need some clarification about beta/alpha testing on the developer console
... list. (Beta testing)
2. Closed testing - It means that you need to specifically add the user's Gmail into the list. (Alpha testing)
3. Staged rollout - This means we can provide the update to some percentage of users we currently have. Suppose 100 users are there and you rollout for 40% then only 4...
IntelliJ IDEA generating serialVersionUID
How do generate this value in IntelliJ IDEA?
12 Answers
12
...
jQuery form serialize - empty string
...
You have to give the input element a name. E.g.:
<form id="form1" action="/Home/Test1" method="post" name="down">
<div id="div2">
<input id="input1" type="text" value="2" name="foo"/>
</div>
</form>
will give you in the alert box f...
iOS 7's blurred overlay effect using CSS?
...es CSS Clip property
that's it.
I also believe this could be done dynamically for any screen if using canvas to copy the current dom and blurring it.
share
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sqlite alter table add MULTIPLE columns in a single statement
...
Note that the migrate method is already called in a transaction so there's limited benefit to this approach.
– Nicolas
Aug 9 at 21:27
add a ...
Python pandas Filtering out nan from a data selection of a column of strings
...ooking at what you originally want you can do just this without the dropna call:
nms[nms.name.notnull()]
UPDATE
Looking at this question 3 years later, there is a mistake, firstly thresh arg looks for at least n non-NaN values so in fact the output should be:
In [4]:
nms.dropna(thresh=2)
Out[4...
搭建高可用mongodb集群（一）——配置mongodb - 大数据 & AI - 清泛网 - 专...
...r
输出日志如下，成功！
[initandlisten] MongoDB starting : pid=18285 port=27017 dbpath=/data/mongodbtest/master master=1
#日志显示主节点参数
[initandlisten] options: { dbpath: “/data/mongodbtest/master”, master: true }
……..
[initandlisten] waiting for connections ...