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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
...
For-each over an array in JavaScript
... for loop,
or for-in with safeguards.
But there's lots more to explore, read on...
JavaScript has powerful semantics for looping through arrays and array-like objects. I've split the answer into two parts: Options for genuine arrays, and options for things that are just array-like, such as the...
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 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?
...
how to remove the dotted line around the clicked a element in html
...
Like @Lo Juego said, read the article
a, a:active, a:focus {
outline: none;
}
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Are there any SHA-256 javascript implementations that are generally considered trustworthy?
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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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