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Two submit buttons in one form
...
If you give each one a name, the clicked one will be sent through as any other input.
<input type="submit" name="button_1" value="Click me">
...
What is Weak Head Normal Form?
...a constructor, stop.
To avoid building these large expressions when we know all the subexpressions will have to be evaluated, we want to force the inner parts to be evaluated ahead of time.
seq
seq is a special function that is used to force expressions to be evaluated. Its semantics are that s...
Tools to get a pictorial function call graph of code [closed]
...tool to visualize callgrind data.
kcachegrind callgrind.out.1234
You are now left inside an awesome GUI program that contains a lot of interesting performance data.
On the bottom right, select the "Call graph" tab. This shows an interactive call graph that correlates to performance metrics in oth...
How to sort objects by multiple keys in Python?
...post I just
referenced influenced each other in some way, though I don't know which order.
In case the link dies here's a very quick synopsis of examples not covered above:
mylist = sorted(mylist, key=itemgetter('name', 'age'))
mylist = sorted(mylist, key=lambda k: (k['name'].lower(), k['age']))
...
demystify Flask app.secret_key
... the browser:
( 1 ) First a SECRET_KEY is established. It should only be known to the application and should be kept relatively constant during the application's life cycle, including through application restarts.
# choose a salt, a secret string of bytes
>>> SECRET_KEY = 'my super secret...
php 获取操作系统、浏览器版本信息（持续更新） - 更多技术 - 清泛网 - 专...
...ction getOS()
{
$agent = $_SERVER['HTTP_USER_AGENT'];
$os = false;
if (eregi('win', $agent) && strpos($agent, '95')){
$os = 'Windows 95';
}
else if (eregi('win 9x', $agent) && strpos($agent, '4.90')){
$os = 'Windows ME';
}
else if (eregi('win', $agent) && ereg('98', $agent)){
...
Read error response body in Java
...LConnection httpConn = (HttpURLConnection)_urlConnection;
InputStream _is;
if (httpConn.getResponseCode() < HttpURLConnection.HTTP_BAD_REQUEST) {
_is = httpConn.getInputStream();
} else {
/* error from server */
_is = httpConn.getErrorStream();
}
...
VIM Replace word with contents of paste buffer?
...that'd get overwritten by the change command.)
Registers are generally specified by typing " then the name (single character) of the register, like "ay then "ap to yank into register a, then put the contents of register a. Same goes for a change command. In this case, if you don't want the text you ...
w3wp process not found
...played for the first time, try to attach your debugger. The process should now show up.
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Rails 3 execute custom sql query without a model
... row[0]
end
You need to have TinyTds gem installed, since you didn't specify it in your question I didn't use Active Record
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