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How do JavaScript closures work?
...clared outside the function, regardless of when and where the function is called.
If a function was called by a function, which in turn was called by another function, then a chain of references to outer lexical environments is created. This chain is called the scope chain.
In the following code, in...
How to inject dependencies into a self-instantiated object in Spring?
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This is actually a bad pattern. If this is how you really use MyBean why not just have constructor with AnotherBean as parameter. Something like: code private @Autowired AnotherBean bean; public void doStuff() { MyBean obj = new M...
How can I add “href” attribute to a link dynamically using JavaScript?
How can I add the href attribute to a link dynamically using JavaScript?
4 Answers
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How to overload the operator++ in two different ways for postfix a++ and prefix ++a?
...t, postfix is much better. An example would be an iterator where you typically use: for(pos=c.begin(); ...; ++pos) {} instead of pos++
– Eric
Oct 2 '10 at 16:28
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Where do the Python unit tests go?
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For a file module.py, the unit test should normally be called test_module.py, following Pythonic naming conventions.
There are several commonly accepted places to put test_module.py:
In the same directory as module.py.
In ../tests/test_module.py (at the same level as t...
Why was “Avoid Enums Where You Only Need Ints” removed from Android's performance tips?
...ume that a developer is only adding enums where they're useful. The only really bad use I've seen of enums was in some harmony code where they really wanted ints (for bitmasks and the like) and the "enum" wasn't an enum in any reasonable sense. If you find yourself calling "ordinal()" a lot, that's ...
history.replaceState() example?
...ight be to keep using replaceState() and simply set the document title manually document.title = "title"
– newshorts
Nov 7 '16 at 18:49
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How do I share IntelliJ Run/Debug configurations between projects?
... with others.
You could copy this file and put it in the same location in all your idea projects.
However, in the future, you might want to consider using source control branches for app versions rather than separate projects. IntelliJ handles these very well.
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JavaScript ternary operator example with functions
...he best...
x = (1 < 2) ? true : false;
The use of ternary here is totally uncessesary - you could simply write
x = (1 < 2);
Likewise, the condition element of a ternary statement is always evaluated as a Boolean value, therefore you can express:
(IsChecked == true) ? removeItem($this) :...
Fastest way to get the first object from a queryset in django?
...eturn None if there aren't any. There are lots of ways to do this which all work. But I'm wondering which is the most performant.
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