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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...
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...
Uniq by object attribute in Ruby
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Use Array#uniq with a block:
@photos = @photos.uniq { |p| p.album_id }
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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.
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jQuery form serialize - empty string
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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...
IntelliJ IDEA generating serialVersionUID
How do generate this value in IntelliJ IDEA?
12 Answers
12
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sqlite alter table add MULTIPLE columns in a single statement
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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 ...
Conditional HTML Attributes using Razor MVC3
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You didn't hear it from me, the PM for Razor, but in Razor 2 (Web Pages 2 and MVC 4) we'll have conditional attributes built into Razor(as of MVC 4 RC tested successfully), so you can just say things like this...
<input type="...