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UICollectionView current visible cell index
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LE SANGLE SANG
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Getting Chrome to accept self-signed localhost certificate
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2020-05-22: With only 5 openssl commands, you can accomplish this.
Please do not change your browser security settings.
With the following code, you can (1) become your own CA, (2) then sign your SSL certificate as a CA. (3) T...
How to sort in mongoose?
... iweiniwein
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6
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How does one remove an image in Docker?
I'm running Docker under Vagrant under OS X 10.8.4 (Mountain Lion), and whenever I try to delete a saved image, I get an error:
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How do you do relative time in Rails?
...o do relative time, i.e. if given a certain Time class, it can calculate "30 seconds ago" or "2 days ago" or if it's longer than a month "9/1/2008", etc.
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What's the function like sum() but for multiplication? product()?
...in the math module:
>>> import math
>>> math.factorial(10)
3628800
Alternative with logarithms
If your data consists of floats, you can compute a product using sum() with exponents and logarithms:
>>> from math import log, exp
>>> data = [1.2, 1.5, 2.5, 0.9, 14...
Saving image from PHP URL
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720
If you have allow_url_fopen set to true:
$url = 'http://example.com/image.php';
$img = '/my/fol...
How to wait 5 seconds with jQuery?
...etTimeout.
setTimeout(
function()
{
//do something special
}, 5000);
UPDATE: you want to wait since when the page has finished loading, so put that code inside your $(document).ready(...); script.
UPDATE 2: jquery 1.4.0 introduced the .delay method. Check it out. Note that .delay only...
How to check if a view controller is presented modally or pushed on a navigation stack?
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edited Oct 9 '16 at 12:50
Cœur
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answered...
Calling dynamic function with dynamic number of parameters [duplicate]
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