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Conventions for exceptions or error codes
...n that can be thrown by every line in my function to know what it will do (Read The Exception That Grounded an Airline to get an idea of how tricky this is). It's tedious and hard to write code that reacts appropriately to every situation (including the unhappy ones), but that's because writing erro...
Ways to save enums in database
..." +
"VALUES ('Ian Boyd', %s)".format(theSuit.name());
and then read back with:
Suit theSuit = Suit.valueOf(reader["Suit"]);
The problem was in the past staring at Enterprise Manager and trying to decipher:
Name Suit
================== ==========
Shelby Jackson 2
...
Why do you need to invoke an anonymous function on the same line?
I was reading some posts about closures and saw this everywhere, but there is no clear explanation how it works - everytime I was just told to use it...:
...
How does data binding work in AngularJS?
...has an inconsistent view of the world. This is a very similar problem to thread locking, which JavaScript avoids since each callback executes exclusively and to completion. Change events break this since setters can have far-reaching consequences which are not intended and non obvious, which creates...
How to synchronize a static variable among threads running different instances of a class in Java?
...eyword before a method brings synchronization to that object. That is, 2 threads running the same instance of the object will be synchronized.
...
Limit file format when using ?
...input type="file"
accept="application/vnd.openxmlformats-officedocument.spreadsheetml.sheet,application/vnd.ms-excel" />
[Edge (EdgeHTML) behavior: The file type filter dropdown shows the file types mentioned here, but is not the default in the dropdown. The default filter is All files (*...
Android 4.3 Bluetooth Low Energy unstable
...on't forget to call android.bluetooth.BluetoothGatt#close()
Start a new thread inside onLeScan(..) and then connect. Reason: BluetoothDevice#connectGatt(Context context, boolean autoConnect, BluetoothGattCallback callback) always fails, if called inside LeScanCallback() {...}.onLeScan(BluetoothDevi...
When and why I should use session_regenerate_id()?
...ion in php?
Should I always use it after I use the session_start() ?
I've read that I have to use it to prevent session fixation, is this the only reason?
...
Are there any SHA-256 javascript implementations that are generally considered trustworthy?
...
I agree with @NickBrunt . It is better if the attacker reads a random hash string that may fit only with this particular app rather than the original password that may be used in several places.
– Aebsubis
May 28 '14 at 15:16
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Is non-blocking I/O really faster than multi-threaded blocking I/O? How?
...
The biggest advantage of nonblocking or asynchronous I/O is that your thread can continue its work in parallel. Of course you can achieve this also using an additional thread. As you stated for best overall (system) performance I guess it would be better to use asynchronous I/O and not multiple t...