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Best Practices: Salting & peppering passwords?
...you do hash_function($salt . hash_function($pepper . $password)).
We know from past experience that "just feeding" one hash result into another hash function can decrease the overall security. The reason is that both hash functions can become a target of attack.
That's why algorithms like PBKDF2 ...
How to parse JSON to receive a Date object in JavaScript?
...eTime at all; just send an RFC 1123 date string ToString("r") or a seconds-from-Unix-epoch number, or something else that you can use in the JavaScript to construct a Date.
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Prevent multiple instances of a given app in .NET?
In .NET, what's the best way to prevent multiple instances of an app from running at the same time? And if there's no "best" technique, what are some of the caveats to consider with each solution?
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jQuery - Illegal invocation
...nally within jQuery that isn't encoding/serializing correctly the To & From Objects.
Try:
var data = {
from : from.val(),
to : to.val(),
speed : speed
};
Notice also on the lines:
$(from).css(...
$(to).css(
You don't need the jQuery wrapper as To & From are already jQuery ...
@ variables in Ruby on Rails
...able, or making it 'const' so that it can't be modified, etc)? I'm coming from a C/C++ & Java perspective, and the really vague and optional syntax is driving me nuts!
– Dan Devine
Jun 13 '18 at 18:05
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Saving changes after table edit in SQL Server Management Studio
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@Mike Gledhill Greetings from 2019 and this is still the case LOL
– Captain Kenpachi
Oct 30 '19 at 7:54
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Java Logging vs Log4J [closed]
...nvironment? Does your configuration sound something like, "Severe messages from this class get sent via e-mail to the support guy; severe messages from a subset of classes get logged to a syslog deamon on our server; warning messages from another subset of classes get logged to a file on network dri...
Java Ordered Map
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From java 8 doc. LinkedHashMap whose order of iteration is the order in which its entries were last accessed
– TRiNE
May 15 '19 at 9:45
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NOT using repository pattern, use the ORM as is (EF)
... exception
Do you code for the 1% chance your database is going to change from one technology to another? If you're thinking about your business's future state and say yes that's a possibility then a) they must have a lot of money to afford to do a migration to another DB technology or b) you're ch...
Multiple linear regression in Python
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sklearn.linear_model.LinearRegression will do it:
from sklearn import linear_model
clf = linear_model.LinearRegression()
clf.fit([[getattr(t, 'x%d' % i) for i in range(1, 8)] for t in texts],
[t.y for t in texts])
Then clf.coef_ will have the regression coefficient...