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Re-entrant locks in C#
...n which the current thread already has a lock will work just fine.
If you start locking on different objects, that's when you have to be careful. Pay particular attention to:
Always acquire locks on a given number of objects in the same sequence.
Always release locks in the reverse sequence to ho...
Changing CSS Values with Javascript
...I was working on image transitions, and the CSS really slows down when you start putting a big image into 36 separate URI's for slicing. This just took a ton of overhead off my script. Thanks!
– Jason Maggard
Feb 3 '16 at 1:24
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How to avoid having class data shared among instances?
...nge method sets self.temp
Pretty straight forward so far yeah? Now let's start playing around with this class. Let's initialize this class first:
a = A('Tesseract')
Now do the following:
>>> print(a.temp)
Skyharbor
>>> print(A.temp)
Skyharbor
Well, a.temp worked as expecte...
How do I determine whether my calculation of pi is accurate?
...ks published pi to 707 decimal places in 1873. Poor guy, he made a mistake starting at the 528th decimal place.
Very interestingly, in 1995 an algorithm was published that had the property that would directly calculate the nth digit (base 16) of pi without having to calculate all the previous digit...
Regular expression for exact match of a string
...
You may also try appending a space at the start and end of keyword: /\s+123456\s+/i.
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How to determine the encoding of text?
...odeError: 'utf-8' codec can't decode byte 0xfc in position 169799: invalid start byte. The file encoding according to vim's :set fileencoding is latin1.
– xtian
Aug 19 '17 at 15:51
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What is the difference between typeof and instanceof and when should one be used vs. the other?
... doesn't work at all. Big surprise. But in Safari, it's intermittent! So I start debugging, and I find that Internet Explorer is always returning false. But the weirdest thing is that Safari seems to be doing some kind of optimization in its JavaScript VM where it is true the first time, but false e...
How does Task become an int?
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+1: Just started looking into async/await and I find this extremely non-intuitive. IMO, there should be a keyword or similar at the return to make this clear, e.g. return async result; (in the same way that await result "unwraps" the ...
Vertically align an image inside a div with responsive height
... @HashemQolami This is the Most amazing CSS thing , since i've started building websites :) .
– Alexander Solonik
Feb 19 '15 at 21:19
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What's the best way to get the current URL in Spring MVC?
... .build().toUri();
//...
}
Using the builder you can directly start creating URIs based on the current request e.g. modify path segments.
See also UriComponentsBuilderMethodArgumentResolver
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