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“tag already exists in the remote" error after recreating the git tag
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Edit, 24 Nov 2016: this answer is apparently popular, so I am adding a note here. If you replace a tag on a central server, anyone who has the old tag—any clone of that central-server repository that already has the tag—could retain its old ...
How do I get a background location update every n minutes in my iOS application?
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I found a solution to implement this with the help of the Apple Developer Forums:
Specify location background mode
Create an NSTimer in the background with UIApplication:beginBackgroundTaskWithExpirationHandler:
When n is smaller than UIApplication:backgrou...
What is “lifting” in Scala?
...he Scala ecosystem I read the term "lifting" / "lifted". Unfortunately, it is not explained what that exactly means. I did some research, and it seems that lifting has something to do with functional values or something like that, but I was not able to find a text that explains what lifting actually...
What is the best way to get the count/length/size of an iterator?
Is there a "computationally" quick way to get the count of an iterator?
9 Answers
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Convert Decimal to Double
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An explicit cast to double like this isn't necessary:
double trans = (double) trackBar1.Value / 5000.0;
Identifying the constant as 5000.0 (or as 5000d) is sufficient:
double trans = trackBar1.Value / 5000.0;
double trans = trackBar1.Value / 5000d;
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RESTful Services - WSDL Equivalent
...l over using a SOAP protocol. However, I still don't understand why there isn't the "WSDL" equivalent in the REST world. I have seen posts saying there is "no need" for the WSDL or that it would be redundant In the REST world, but I don't understand why. Isn't it always useful to programmatically...
Get the current language in device
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If you want to get the selected language of your device, this might help you:
Locale.getDefault().getDisplayLanguage();
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AngularJS $http and $resource
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$http is for general purpose AJAX. In most cases this is what you'll be using. With $http you're going to be making GET, POST, DELETE type calls manually and processing the objects they return on your own.
$resource wraps $http fo...
Actual meaning of 'shell=True' in subprocess
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The benefit of not calling via the shell is that you are not invoking a 'mystery program.' On POSIX, the environment variable SHELL controls which binary is invoked as the "shell." On Windows, there is no bourne shell descendent, only cmd.exe.
So invoking the she...
Scroll Element into View with Selenium
Is there any way in either Selenium 1.x or 2.x to scroll the browser window so that a particular element identified by an XPath is in view of the browser? There is a focus method in Selenium, but it does not seem to physically scroll the view in FireFox. Does anyone have any suggestions on how to do...