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How to check if the string is empty?
...trings are "falsy" which means they are considered false in a Boolean context, so you can just do this:
if not myString:
This is the preferred way if you know that your variable is a string. If your variable could also be some other type then you should use myString == "". See the documentation...
When to use std::forward to forward arguments?
C++0x shows an example of using std::forward :
3 Answers
3
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CURL alternative in Python
...st('https://app.streamsend.com/emails', headers = {'Accept' : 'application/xml'})
result = director.open(req)
# result.read() will contain the data
# result.info() will contain the HTTP headers
# To get say the content-length header
length = result.info()['Content-Length']
Your cURL call using u...
Is “inline” without “static” or “extern” ever useful in C99?
...
Actually this excellent answer also answers your question, I think:
What does extern inline do?
The idea is that "inline" can be used in a header file, and then "extern inline" in a .c file. "extern inline" is just how you instruct the c...
Select TreeView Node on right click before displaying ContextMenu
...d like to select a WPF TreeView Node on right click, right before the ContextMenu displayed.
11 Answers
...
How to find the JVM version from a program?
...em.getProperty("java.version") returns what you need.
You can also use JMX if you want:
ManagementFactory.getRuntimeMXBean().getVmVersion()
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Tricky Google interview question
...:vector<int> v(n);
v[0] = 1;
int i2 = 0; // Index for 2
int i5 = 0; // Index for 5
int x2 = 2 * v[i2]; // Next two candidates
int x5 = 5 * v[i5];
for (int i = 1; i != n; ++i)
{
int m = std::min(x2, x5);
std::cout <&l...
Django get the static files URL in view
....contrib.staticfiles.templatetags.staticfiles import static
url = static('x.jpg')
# url now contains '/static/x.jpg', assuming a static path of '/static/'
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Returning a file to View/Download in ASP.NET MVC
...
var cd = new System.Net.Mime.ContentDisposition
{
// for example foo.bak
FileName = document.FileName,
// always prompt the user for downloading, set to true if you want
// the browser to try to show the file inline
Inline = false,
};
Resp...