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jQuery equivalent of getting the context of a Canvas
...the element from .get(0) may not fail so silently... You can easily check if the canvas was found first before .get(0) like
if( $("#canvas").length ) ctx = $("#canvas").get(0).getContext('2d');
else console.log('Error: Canvas not found with selector #canvas');
...
How to create a unique index on a NULL column?
...rdingly. It's actually a failure in in SQL Server to honor various SQL specifications: here is a link for a request for the "correct implementation" for what it is worth: connect.microsoft.com/SQLServer/feedback/details/299229/….
– user166390
Aug 8 '10 at 5:0...
Opening port 80 EC2 Amazon web services [closed]
...tables started by default. Windows has windows FW. Turn them off and see if that was the problem. If it was, then edit the firewall to allow 80/443 and restart
– Andrew Backer
Feb 28 '14 at 8:36
...
Why we should not use protected static in java
...ty close.
The only case I can see where you might use the two together is if you had an abstract class that was designed to be extended and the extending class could then modify the behavior using constants defined in the original. That sort of arrangement would most likely end up very messy though...
Correct approach to global logging in Golang
What's the pattern for application logging in Go? If I've got, say, 5 goroutines I need to log from, should I...
7 Answers...
Get data from file input in JQuery
...;
function handleFileSelect()
{
if (!window.File || !window.FileReader || !window.FileList || !window.Blob) {
alert('The File APIs are not fully supported in this browser.');
return;
}
var input = document.getEl...
IE7 Z-Index Layering Issues
...an element with z-index: 1 - as long as the respective elements belong to different stacking contexts.
When you specify z-index, you're specifying it relative to other elements in the same stacking context, and although the CSS spec's paragraph on Z-index says a new stacking context is only created...
Signtool error: No certificates were found that met all given criteria with a Windows Store App?
...ng this error through Visual Studio it was because there was a signing certificate setup to match the computer it was originally developed on.
You can check this by going to the project properties > signing tab and checking the certificate details.
You can uncheck "Sign the ClickOnce manifests"...
What is the difference between CurrentCulture and CurrentUICulture properties of CultureInfo in .NET
... app.
Often times they are both the same. But on my system they would be different: I prefer my numbers and dates in the German format, so the CurrentCulture would be German, but I also prefer all my applications in English, so the CurrentUICulture would be English.
There is a nice article on the ...
Get list from pandas DataFrame column headers
...returns an array and this has a helper function .tolist to return a list.
If performance is not as important to you, Index objects define a .tolist() method that you can call directly:
my_dataframe.columns.tolist()
The difference in performance is obvious:
%timeit df.columns.tolist()
16.7 µs ...