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What is the difference between a function expression vs declaration in JavaScript? [duplicate]
...wser loads them into the execution context.
Function declarations load before any code is executed.
Function expressions load only when the interpreter reaches that line of code.
So if you try to call a function expression before it's loaded, you'll get an error! If you call a function declaratio...
What does “./bin/www” do in Express 4.x?
...t it generated ./bin/www file, on which only the application server and port settings are written and everything others like middleware and routing is defined in ./app.js file.
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What does the Java assert keyword do, and when should it be used?
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Assertions (by way of the assert keyword) were added in Java 1.4. They are used to verify the correctness of an invariant in the code. They should never be triggered in production code, and are indicative of a bug or misuse of a code path. They can be activat...
Is MATLAB OOP slow or am I doing something wrong?
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I've been working with OO MATLAB for a while, and ended up looking at similar performance issues.
The short answer is: yes, MATLAB's OOP is kind of slow. There is substantial method call overhead, higher than mainstream OO languages, a...
Scala: What is the difference between Traversable and Iterable traits in Scala collections?
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To put it simply, iterators keep state, traversables don't.
A Traversable has one abstract method: foreach. When you call foreach, the collection will feed the passed function all the elements it keeps, one after the other.
On the other hand, an I...
VS 2010 Test Runner error “The agent process was stopped while the test was running.”
...e tests at one time using test lists, I sometimes reveive the following error for one or more of the tests:
19 Answers
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What are the rules for evaluation order in Java?
...me say this very clearly, because people misunderstand this all the time:
Order of evaluation of subexpressions is independent of both associativity and precedence. Associativity and precedence determine in what order the operators are executed but do not determine in what order the subexpressions ...
Naming convention for utility classes in Java
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Like many such conventions, what's important is not so much what convention you use, as that you use it consistently. Like, if you have three utility classes and you call them CustomerUtil, ProductUtils, and StoreUtility, other people trying to use your classes a...
Class constants in python
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Since Horse is a subclass of Animal, you can just change
print(Animal.SIZES[1])
with
print(self.SIZES[1])
Still, you need to remember that SIZES[1] means "big", so probably you could improve your code by doing something like:
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What does denote in C# [duplicate]
I'm new to C# and directly diving into modifying some code for a project I received. However, I keep seeing code like this :
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