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How Many Seconds Between Two Dates?
..., NN, EE, 0, 0, 0, 0);
var dif = t1.getTime() - t2.getTime();
var Seconds_from_T1_to_T2 = dif / 1000;
var Seconds_Between_Dates = Math.abs(Seconds_from_T1_to_T2);
A handy source for future reference is the MDN site
Alternatively, if your dates come in a format javascript can parse
var dif = Dat...
How to iterate over a JavaScript object?
...Cerbrus The OP allready knows how to iterate an array in parts. Using keys from the code given should be enough.
– Yoshi
Jan 17 '13 at 12:47
2
...
How to Find And Replace Text In A File With C#
...
You're going to have a hard time writing to the same file you're reading from. One quick way is to simply do this:
File.WriteAllText("test.txt", File.ReadAllText("test.txt").Replace("some text","some other text"));
You can lay that out better with
string str = File.ReadAllText("test.txt");
str...
What are the benefits of Java's types erasure?
...c. It's nice to have universal (∀) and existential (∃) quantification from something like first-order logic.
Using type systems for reasoning
These goals can be very nicely addressed by type systems. This is especially clear because of the Curry-Howard correspondence. This correspondence is o...
How to check if an array value exists?
...
Using: in_array()
$search_array = array('user_from','lucky_draw_id','prize_id');
if (in_array('prize_id', $search_array)) {
echo "The 'prize_id' element is in the array";
}
Here is output: The 'prize_id' element is in the array
Using: array_key_exists()
$sear...
MySQL error code: 1175 during UPDATE in MySQL Workbench
... 1. I use MySQL workbench, and I'm writing the statement in the SQL editor from inside the workbench. I'm writing the following command:
...
How can I hash a password in Java?
... return hashOfInput.equals(saltAndHash[1]);
}
// using PBKDF2 from Sun, an alternative is https://github.com/wg/scrypt
// cf. http://www.unlimitednovelty.com/2012/03/dont-use-bcrypt.html
private static String hash(String password, byte[] salt) throws Exception {
if (pass...
Error executing command 'ant' on Mac OS X 10.9 Mavericks when building for Android with PhoneGap/Cor
...anagers, the problem can simply be fixed by downloading the binary release from the apache ANT web site and adding the binary to your system PATH.
For example, on Mountain Lion, in ~/.bash_profile and ~/.bashrc my path was setup like this:
export ANT_HOME="/usr/share/ant"
export PATH=$PATH:$ANT_...
Android Dialog: Removing title bar
...h themes and came across a useful bit of default theming.
Here's the code from my AndroidManifest.xml that I was using when the title bar was showing:
<activity
android:name=".AlertDialog"
android:theme="@android:style/Theme.Holo.Dialog"
>
</activity>
Here's the change ...
What is the “owning side” in an ORM mapping?
...de necessary:
The idea of a owning side of a bidirectional relation comes from the fact that in relational databases there are no bidirectional relations like in the case of objects. In databases we only have unidirectional relations - foreign keys.
What is the reason for the name 'owning side'?
...