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Java 256-bit AES Password-Based Encryption
...ecret) with the recipient out-of-band. Then to derive a good key from this information:
/* Derive the key, given password and salt. */
SecretKeyFactory factory = SecretKeyFactory.getInstance("PBKDF2WithHmacSHA256");
KeySpec spec = new PBEKeySpec(password, salt, 65536, 256);
SecretKey tmp = factory....
When to use self over $this?
... -1. This answer is misleading, read the other answers for more info.
– Pacerier
Jul 13 '13 at 9:14
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Can someone explain the “debounce” function in Javascript
....
The second point is done by the produced function. It first stores some information about the call (the this context and the arguments) in variables so it can later use these for the debounced call. It then clears the timeout (if there was one set) and then creates a new one to replace it using s...
The SQL OVER() clause - when and why is it useful?
...more efficient means than using multiple inline views to find out the same information. You can put this query within an inline view and filter on Total then.
SELECT ...,
FROM (your query) inlineview
WHERE Total < 200
...
Using a strategy pattern and a command pattern
... no. The Command pattern employs an object which has most (if not all) the info needed (eg, receiver, selector, arguments) to invoke an object's method. It's a simplistic pattern which can be used in other design patterns such as Chain of Responsibility, Collection and the Pipeline pattern you descr...
How to organize a node app that uses sequelize?
...s not to initialize the model in the file but just to provide the necesary information for its initialization and let a centralized module take care of the models setup and instantiation.
So the steps are:
Have several Model files with data about the model, like fields, relationships and options.
H...
Mediator Vs Observer Object-Oriented Design Patterns
...the observer design pattern.
Each ambulance observer object wishes to be informed when there is an emergency state, so he can drive the address and give help.
The emergency operator observable keep reference to each on of the ambulance observers and notify them when help is needed (or generating ...
What is causing “Unable to allocate memory for pool” in PHP?
... "Unable to allocate memory for pool" and having trouble tracking down any information.
12 Answers
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Empty arrays seem to equal true and false at the same time
...always coerced to TRUE. look at the "Boolean context" table at: javascript.info/tutorial/object-conversion
– Niki
Jun 7 '16 at 2:04
2
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Sorting an IList in C#
...ist.OrderBy((s1, s2) => s1.Length.CompareTo(s2.Length));
There's more info in the post: http://blog.velir.com/index.php/2011/02/17/ilistt-sorting-a-better-way/
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