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EF Migrations: Rollback last applied migration?
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@tutiplain Look at his second code block. You quoting what he wishes existed, not what does exist.
– Sinjai
Jun 22 '18 at 1:48
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What does the Q_OBJECT macro do? Why do all Qt objects need this macro?
...the example class definitions have the macro Q_OBJECT as the first line. What is the purpose of this preprocessor macro?
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Determining 32 vs 64 bit in C++
...ine whether C++ code is being compiled in 32 vs 64 bit. We've come up with what we think is a reasonable solution using macros, but was curious to know if people could think of cases where this might fail or if there is a better way to do this. Please note we are trying to do this in a cross-platfor...
Is ServiceLocator an anti-pattern?
... services internally.
But a much better example is ASP.NET MVC and WebApi. What do you think makes the dependency injection possible in the controllers? That's right -- service location.
Your questions
But wait a second, if we were using DI approach, we would introduce a
dependency with another par...
What is the difference between `new Object()` and object literal notation?
What is the difference between this constructor-based syntax for creating an object:
11 Answers
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Simple way to repeat a String in java
.... . . . .
New in Java 11 is the method String::repeat that does exactly what you asked for:
String str = "abc";
String repeated = str.repeat(3);
repeated.equals("abcabcabc");
Its Javadoc says:
/**
* Returns a string whose value is the concatenation of this
* string repeated {@code count} ti...
Creating and Update Laravel Eloquent
What's the shorthand for inserting a new record or updating if it exists?
13 Answers
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If REST applications are supposed to be stateless, how do you manage sessions?
...fy, and delete this resource through HTTP.
Hope this helps differentiate what statelessness and various states mean.
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Call a function after previous function is complete
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@MikeRobinson Here's the problem: What if the ...do stuff contains things that are asynchronous? Function2 will still not fire when expected. The example in my comment above shows that because the foo() function has asynchronous code in it, bar() does not fir...
What is a simple command line program or script to backup SQL server databases?
...e entire media contents, ignoring any existing content." Make sure this is what you want.
– alexg
May 10 '12 at 9:30
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