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How to make an Android device vibrate?
...illiseconds) method. Here is a quick example:
// Get instance of Vibrator from current Context
Vibrator v = (Vibrator) getSystemService(Context.VIBRATOR_SERVICE);
// Vibrate for 400 milliseconds
v.vibrate(400);
That's it, simple!
How to Vibrate Indefinitely
It may be the case that you want the...
Function for Factorial in Python
...
Existing solution
The shortest and probably the fastest solution is:
from math import factorial
print factorial(1000)
Building your own
You can also build your own solution. Generally you have two approaches. The one that suits me best is:
from itertools import imap
def factorial(x):
r...
Iterating through a Collection, avoiding ConcurrentModificationException when removing objects in a
....next();
if (string.isEmpty()) {
// Remove the current element from the iterator and the list.
iterator.remove();
}
}
Note that Iterator.remove() is the only safe way to modify a collection during iteration; the behavior is unspecified if the underlying collection is modifi...
How to write the Fibonacci Sequence?
...ne is pretty easy to implement and very, very fast to compute, in Python:
from math import sqrt
def F(n):
return ((1+sqrt(5))**n-(1-sqrt(5))**n)/(2**n*sqrt(5))
An other way to do it is following the definition (from wikipedia):
The first number of the sequence is 0,
the second number is...
Remove duplicates from an array of objects in JavaScript
...
How could I modify the above to remove objects from an array that contain X as well as de-duped?
– Ryan Holton
Feb 9 at 12:36
...
Creating a jQuery object from a big HTML-string
...
Update:
From jQuery 1.8, we can use $.parseHTML, which will parse the HTML string to an array of DOM nodes. eg:
var dom_nodes = $($.parseHTML('<div><input type="text" value="val" /></div>'));
alert( dom_nodes.find(...
Remove characters except digits from string using Python?
How can I remove all characters except numbers from string?
15 Answers
15
...
How to update a git clone --mirror?
...dish ö :)): Git fetch just updates your repository with remote references from the remote. This command updates everything on the mirrored repository.
– ralphtheninja
May 27 '11 at 12:25
...
Delete specified file from document directory
I want to delete an image from my app document directory. Code I have written to delete image is:
10 Answers
...
I need to securely store a username and password in Python, what are my options?
I'm writing a small Python script which will periodically pull information from a 3rd party service using a username and password combo. I don't need to create something that is 100% bulletproof (does 100% even exist?), but I would like to involve a good measure of security so at the very least it w...