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How to “perfectly” override a dict?
...or out the difference between Python 2 and 3, create a singleton (_RaiseKeyError) to make sure we know if we actually get an argument to dict.pop, and create a function to ensure our string keys are lowercase:
from itertools import chain
try: # Python 2
str_base = basestring
it...
Monad in plain English? (For the OOP programmer with no FP background)
...g all exceptions thrown by each individual commands, and turning them into error codes which are then passed to the next command.
Even more fancy execution semantics like transactions, non-deterministic execution or continuations can be implemented like this in a language which doesn't support it n...
Controlling fps with requestAnimationFrame?
...ime. This is fine so long as they check if it's not undefined to avoid an error. The RAF is FAST and will kick it back immediately, then go through a bunch of GPU frames just checking if it's been sent back yet. The SI in the web-worker will have the sprite array most of the time, and will update...
What is the best Distributed Brute Force countermeasure?
...es), we can't detect an ongoing attack based on number of 'user not found' errors. And if we enforce a restrictive system-wide (all usernames, all IPs) throttling, any such attack will DoS our entire site for the duration of the attack plus the throttling period.
So we need to do something else.
T...
Regular expression to match numbers with or without commas and decimals in text
... '.1245' to be transformed in '0.1245' or not. I wouldn't be surprised if errors or unwanted matchings or unmatchings will remain for certain cases of number strings; then I'd like to know these cases to understand and correct the deficiency.
I apologize for this code written in Python, but regexe...
Is quitting an application frowned upon?
...nt Task (rather than being created in its own Task). If the Camera has an error and it crashes, should that result in the whole app crashing? From the standpoint of the user, only the Camera failed, and they should be returned to their previous activity. So it just restarts the process with all t...
DDD - the rule that Entities can't access Repositories directly
...ical for implementation.
Quoting:
"The single model reduces the chances of error, because the design is now a direct outgrowth of the carefully considered model. The design, and even the code itself, has the communicativeness of a model."
The way I'm interpreting this, if you ended up with more line...
How would you implement an LRU cache in Java?
...es the limit size more of a suggestion/rough guess within a fair amount of error depending on how well spread your keys hash algorithm is.
Here is the test to show that the concurrent version probably works. :) (Test under fire would be the real way).
public class SimpleConcurrentLRUCache {
...
Fastest way to list all primes below N
...or a,b in itertools.izip_longest(f1(num),f2(num))]):
sys.exit("Error: %s(%s) != %s(%s)"%(f1.func_name,num,f2.func_name,num))
n=1000000
test(sieveOfAtkin,sieveOfEratosthenes,n)
test(sieveOfAtkin,ambi_sieve,n)
test(sieveOfAtkin,ambi_sieve_plain,n)
test(sieveOfAtkin,su...
Why don't they teach these things in school? [closed]
...se it produces more reliable code? Better performing code? Reduces human error? Or is it because it is easier to grade papers/programs giving them more time to do research? Is it because they dont know how to program and they are just following someone elses book on the subject? Did they teach ...