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JavaScript checking for null vs. undefined and difference between == and ===
... typeof comparison above), == and === will behave exactly the same.
More reading:
Angus Croll's Truth, Equality and JavaScript
Andrea Giammarchi's JavaScript Coercion Demystified
comp.lang.javascript FAQs: JavaScript Type-Conversion
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Importing from a relative path in Python
... of Python. The quoted part is no longer to be found in PEP 8. Nowadays it reads like: "explicit relative imports are an acceptable alternative to absolute imports, especially when dealing with complex package layouts where using absolute imports would be unnecessarily verbose"
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What is the difference between assert, expect and should in Chai?
...ected 1 to be true
So while the expect and should interface are nicer to read, it is not like one interface is more naturally informative than the other when an assertion fails. This message, which is identical for all three interfaces, does not tell you what exactly you were testing, only that th...
How to make junior programmers write tests? [closed]
...t, and I get done in about the same time, only with a partial test suite already in place.
(I don't live in a commercial programming environment, and am often the only coder working a particular project.)
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Do you use NULL or 0 (zero) for pointers in C++?
...at it is a part of the standard. It is an implementation detail as far as reading the code goes. The reader should think "NULL pointer" not "0 which in this case means NULL pointer, not a number I could be doing arithmetic with."
– Andy Lester
Mar 14 '13 at 2...
Client to send SOAP request and receive response
...ncResult = webRequest.BeginGetResponse(null, null);
// suspend this thread until call is complete. You might want to
// do something usefull here like update your UI.
asyncResult.AsyncWaitHandle.WaitOne();
// get the response from the completed web request.
string soapResult;
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Ruby: kind_of? vs. instance_of? vs. is_a?
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It just reads better sometimes. Think @honda.kind_of? Car and @person.is_a? Administrator, Ruby's all about the aesthetics. In fact, notice the grammatical error... with active support you can write @person.is_an? Administrator :)......
What are the “standard unambiguous date” formats for string-to-date conversion in R?
...e conversion will depend on your locale (see the examples in ?strptime and read ?LC_TIME).
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async await return Task
...value:
public async Task MethodName()
{
await Task.CompletedTask;
}
Read these:
TPL: http://msdn.microsoft.com/en-us/library/dd460717(v=vs.110).aspx and Tasks: http://msdn.microsoft.com/en-us/library/system.threading.tasks(v=vs.110).aspx
Async: http://msdn.microsoft.com/en-us/library/hh1565...
Can two applications listen to the same port?
...nother remote IP?
I know I can have one application that starts off two threads (or forks) to have similar behavior, but can two applications that have nothing in common do the same?
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