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Can constructors be async?
...onstructor acts very similarly to a method returning the constructed type. And async method can't return just any type, it has to be either “fire and forget” void, or Task.
If the constructor of type T actually returned Task<T>, that would be very confusing, I think.
If the async constru...
django admin - add custom form fields that are not part of the model
... that based on these fields values I will build the long string expression and save it in the relevant model field.
5 Answe...
Check if a string is html or not
...se. If you use a < b && a > c the browser will turn the > and < characters into &gt; and &lt; entities appropriately. If, instead, you use a<b && a>c the browser will interpret the markup as a<b && a>c</b> because the lack of a space mean...
Is pass-by-value a reasonable default in C++11?
In traditional C++, passing by value into functions and methods is slow for large objects, and is generally frowned upon. Instead, C++ programmers tend to pass references around, which is faster, but which introduces all sorts of complicated questions around ownership and especially around memory ma...
Making code internal but available for unit testing from other projects
...ific strongly named assemblies that are allowed to access internal classes and members of the other assembly.
Note, this should be used with discretion as it tightly couples the involved assemblies. A common use for InternalsVisibleTo is for unit testing projects. It's probably not a good choice ...
Print multiple arguments in Python
...al score for "+str(name)"+ is "+str(score))
– Snakes and Coffee
Mar 8 '13 at 4:46
5
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Fastest way to download a GitHub project
...frastructure that you're wrapped around? The whole multi-user file sharing and versioning universe that you are? Well screw all that, just give me the goodies." I mean, use that button, it's no problem, that's what it's there for, but it's for sure not the predominant use case of the site.
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ORA-30926: unable to get a stable set of rows in the source tables
...cified in USING clause. This probably means that TABLE_A is a parent table and the same ROWID is returned several times.
You could quickly solve the problem by using a DISTINCT in your query (in fact, if 'Y' is a constant value you don't even need to put it in the query).
Assuming your query is co...
How do I calculate someone's age in Java?
...
JDK 8 makes this easy and elegant:
public class AgeCalculator {
public static int calculateAge(LocalDate birthDate, LocalDate currentDate) {
if ((birthDate != null) && (currentDate != null)) {
return Period.betwee...
Is it possible to create static classes in PHP (like in C#)?
I want to create a static class in PHP and have it behave like it does in C#, so
6 Answers
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