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How do I test which class an object is in Objective-C?
How do I test whether an object is an instance of a particular class in Objective-C? Let's say I want to see if object a is an instance of class b, or class c, how do I go about doing it?
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Get pandas.read_csv to read empty values as empty string instead of nan
I'm using the pandas library to read in some CSV data. In my data, certain columns contain strings. The string "nan" is a possible value, as is an empty string. I managed to get pandas to read "nan" as a string, but I can't figure out how to get it not to read an empty value as NaN. Here's sam...
Left align and right align within div in Bootstrap
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2018 Update...
Bootstrap 4.1+
pull-right is now float-right
text-right is the same as 3.x, and works for inline elements
both float-* and text-* are responsive for different alignment at different widths (ie: float-sm-right)
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CPU Privilege Rings: Why rings 1 and 2 aren't used?
A couple of questions regarding the x86 CPU privilege rings:
3 Answers
3
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NULL vs nil in Objective-C
In observeValueForKeyPath:ofObject:change:context: - why do the docs use NULL instead of nil when not specifying a context pointer?
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What does it mean to start a PHP function with an ampersand?
I'm using the Facebook library with this code in it:
3 Answers
3
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Can I update a component's props in React.js?
... static (passed in from the parent component), while state changes based upon events. However, I noticed in the docs a reference to componentWillReceiveProps , which specifically includes this example:
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Difference between Xcode version (CFBundleShortVersionString) and build (CFBundleVersion)
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The Apple document "Information Property List Key Reference" says that CFBundleShortVersionString represents a release version, whereas CFBundleVersion represents any build, released or not. Also, CFBundleShortVersionString can be locali...
How to change ViewPager's page?
I'm using ViewPager in my app and define it in the main Activity. Inside onCreate method I load some number of pages from SharedPreferences and then pass it to PagerAdapter:
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How can I make a JUnit Test wait?
I have a JUnit test that I want to have wait for a period of time, synchronously. My JUnit test looks like this:
6 Answers
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