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Are “while(true)” loops so bad? [closed]
I've been programming in Java for several years now, but I just recently returned to school to get a formal degree. I was quite surprised to learn that, on my last assignment, I lost points for using a loop like the one below.
...
Pass in an array of Deferreds to $.when()
....my_array).then( ___ );
In either case, since it's unlikely that you'll known in advance how many formal parameters the .then handler will require, that handler would need to process the arguments array in order to retrieve the result of each promise.
...
The SQL OVER() clause - when and why is it useful?
...t
GROUP BY [Partition]
) agg ON orig.[Partition] = agg.[Partition]
Now look how you can do the same with a windowed aggregate:
SELECT
[Partition],
Value,
Value * 100.0 / SUM(Value) OVER (PARTITION BY [Partition]) AS ValuePercent
FROM OriginalRowset orig
Much easier and cleaner, isn'...
Generate random numbers uniformly over an entire range
...rface. While theoretically also being an external dependency, Boost has by now a status of "quasi-standard" library, and its Random module could be regarded as the classical choice for good-quality random number generation. It features two advantages with respect to the C++11 solution:
it is more ...
How to convert OutputStream to InputStream?
...a OutputStream and second one, which accepts only InputStream . Do you know how to convert OutputStream to InputStream (not vice versa, I mean really this way) that I will be able to connect these two parts?
...
Python __call__ special method practical example
I know that __call__ method in a class is triggered when the instance of a class is called. However, I have no idea when I can use this special method, because one can simply create a new method and perform the same operation done in __call__ method and instead of calling the instance, you can c...
Most efficient way of making an if-elif-elif-else statement when the else is done the most?
...dictionary :
options = {'this': doThis,'that' :doThat, 'there':doThere}
Now use just:
options.get(something, doThisMostOfTheTime)()
If something is not found in the options dict then dict.get will return the default value doThisMostOfTheTime
Some timing comparisons:
Script:
from random imp...
Why is __init__() always called after __new__()?
...it__ takes self as parameter. Until you create instance there is no self.
Now, I gather, that you're trying to implement singleton pattern in Python. There are a few ways to do that.
Also, as of Python 2.6, you can use class decorators.
def singleton(cls):
instances = {}
def getinstance(...
Spring Test & Security: How to mock authentication?
...t(
basicActiveUser, managerActiveUser
));
}
}
Now we have our users ready, so imagine we want to test the access control to this controller function:
@RestController
@RequestMapping("/foo")
public class FooController {
@Secured("ROLE_MANAGER")
@GetMapping("/salu...
Bootstrap dropdown sub menu missing
...Mark Otto..
"Submenus just don't have much of a place on the web right now, especially the mobile web. They will be removed with 3.0" - https://github.com/twbs/bootstrap/pull/6342
But, with a little extra CSS you can get the same functionality.
Bootstrap 4 (navbar submenu on hover)
.navbar-n...