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What does the JSLint error 'body of a for in should be wrapped in an if statement' mean?
I used JSLint on a JavaScript file of mine. It threw the error:
8 Answers
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Targeting .NET Framework 4.5 via Visual Studio 2010
... ".NET 4.5" is selected for the solution.
Build your project and check for errors.
Assuming the build completed you can verify that you are indeed targeting 4.5 by adding a reference to a 4.5 specific class to your source code:
using System;
using System.Text;
namespace testing
{
using net45ch...
What is the use of having destructor as private?
... //
}
int main ()
{
myclass m; // error: ctor and dtor are private
myclass* mp = new myclass (..); // error: private ctor
myclass* mp = myclass::create(..); // OK
delete mp; // error: private dtor
myclass::destroy...
urllib2.HTTPError: HTTP Error 403: Forbidden
...ite, headers=hdr)
try:
page = urllib2.urlopen(req)
except urllib2.HTTPError, e:
print e.fp.read()
content = page.read()
print content
Actually, it works with just this one additional header:
'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',
...
Checking images for similarity with OpenCV
...images ( same size/orientation )
// Compare two images by getting the L2 error (square-root of sum of squared error).
double getSimilarity( const Mat A, const Mat B ) {
if ( A.rows > 0 && A.rows == B.rows && A.cols > 0 && A.cols == B.cols ) {
// Calculate the L2 r...
git command to move a folder inside another
...e move.
Note: "git mv A B/", when B does not exist as a directory, should error out, but it didn't.
See commit c57f628 by Matthieu Moy (moy) for Git 1.9/2.0 (Q1 2014):
Git used to trim the trailing slash, and make the command equivalent to 'git mv file no-such-dir', which created the file no-such-...
Why is printing to stdout so slow? Can it be sped up?
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I ran your file writing test on my machine, and with buffering, it also 0.05s here for 100,000 lines.
However, with the above modifications to write unbuffered, it takes 40 seconds to write only 1,000 lines to disk. I gave up waiting for 100,000 lines to write, but extrapolating from the previous,...
What is the difference between exit and return? [duplicate]
...can get; the conventional usage is 0 for success or any other value for an error).
The parameter of the return statement is whatever the return type of the function is. If the function returns void, you can omit the return at the end of the function.
Last point, exit() come in two flavors _exit() an...
What is the difference between int, Int16, Int32 and Int64?
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How can I pass data from Flask to JavaScript in a template?
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Try this the next time you get Uncaught SyntaxError: Unexpected token & in the javascript console.
– scharfmn
Jan 5 '15 at 23:49
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