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Pandas convert dataframe to array of tuples
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@coldspeed The lesson I got from the linked question is that itertuples is slow because converting to tuples is usually slower than vectorized/cython operations. Given that the question is asking to convert to tuples, is there any reason that we'd think...
Using grep to search for a string that has a dot in it
... you'll need to use \\. for bash too, or use "\." to escape it from the shell.
– Tomofumi
Aug 9 '17 at 7:39
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How to run Selenium WebDriver test cases in Chrome?
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You need to download the executable driver from:
ChromeDriver Download
Then all you need to do is use the following before creating the driver object (already shown in the correct order):
System.setProperty("webdriver.chrome.driver", "/path/to/chromedriver");
WebD...
Is there a standard naming convention for git tags? [closed]
...uses format "1.2.3". Tagging Specification (SemVerTag) article was removed from specs. More here: semver.org
– petrnohejl
Jan 29 '13 at 10:34
9
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Delete element in a slice
... Don't you get out of range exception if i is the last element from slice? a = append(a[:i], a[i+1:]...)
– themihai
May 21 '15 at 8:13
5
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Get string between two strings in a string
...per exemple of string key : text I want to keep - end of my string";
int pFrom = St.IndexOf("key : ") + "key : ".Length;
int pTo = St.LastIndexOf(" - ");
String result = St.Substring(pFrom, pTo - pFrom);
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Difference between repository and service?
... to data/objects. It is a way of decoupling the way you store data/objects from the rest of the application.
A service supplies coordination or other "services" that are required to operate your application. They are very different in that Services don't typically know how to access data from persi...
How to change ViewPager's page?
...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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When and why will a compiler initialise memory to 0xCD, 0xDD, etc. on malloc/free/new/delete?
...that memory just has been freed by HeapFree().
Disclaimer: the table is from some notes I have lying around - they may not be 100% correct (or coherent).
Many of these values are defined in vc/crt/src/dbgheap.c:
/*
* The following values are non-zero, constant, odd, large, and atypical
* ...
What does the explicit keyword mean?
... compiler can use constructors callable with a single parameter to convert from one type to another in order to get the right type for a parameter.
Here's an example class with a constructor that can be used for implicit conversions:
class Foo
{
public:
// single parameter constructor, can be used...