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When to use ref and when it is not necessary in C#
...mean it's good. It would have been better if rather than if (int.TryParse("123", out var theInt) { /* use theInt */ } we had var candidate = int.TrialParse("123"); if (candidate.Parsed) { /* do something with candidate.Value */ } It is more code, but is much more consistent with the C# language desi...
How should I write tests for Forms in Django?
... response = self.client.post("/form-url/", data={ 'name': 'test123', 'category': 1, 'note': 'note123' }, content_type=django.test.client.MULTIPART_CONTENT) If any stuck with getting empty instance when saving the form, then check the requests sent from br...
How can I update NodeJS and NPM to the next versions?
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npm update npm -g didn't work for me on windows - it completed without output but npm remained the same version (1.3.11 when the most rece...
Why does calling a function in the Node.js REPL with )( work?
...terface._line (readline.js:523:8)
at Interface._ttyWrite (readline.js:798:14)
at ReadStream.onkeypress (readline.js:98:10)
at ReadStream.EventEmitter.emit (events.js:106:17)
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Hide options in a select list using jQuery
...Nov 17 '10 at 13:17
enthusiastic123enthusiastic123
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How does Java handle integer underflows and overflows and how would you check for it?
... one to a Java integer, the process would look like this as it overflowed. 98, 99, 100, -100, -99, -98, .... Does that make more sense?
– Austin A
Mar 7 '15 at 3:06
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printf with std::string?
...r example:
std::locale loc("");
std::cout.imbue(loc);
std::cout << 123456.78;
The nameless locale (the "") picks a locale based on the user's configuration. Therefore, on my machine (configured for US English) this prints out as 123,456.78. For somebody who has their computer configured fo...
Get selected option text with JavaScript
...;select id="box1" onChange="myNewFunction(this);">
<option value="98">dog</option>
<option value="7122">cat</option>
<option value="142">bird</option>
</select>
sh...
What does Expression.Quote() do that Expression.Constant() can’t already do?
...) ex1.Compile();
var f1b = f1a(100);
Console.WriteLine(f1b(123));
The lambda has a nested lambda; the compiler generates the interior lambda as a delegate to a function closed over the state of the function generated for the outer lambda. We need consider this case no more.
Suppos...
Search for string and get count in vi editor
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dirkgentlydirkgently
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