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When and why will a compiler initialise memory to 0xCD, 0xDD, etc. on malloc/free/new/delete?
...g mode (support may vary by compiler version):
Value Name Description
------ -------- -------------------------
0xCD Clean Memory Allocated memory via malloc or new but never
written by the application.
0xDD Dead Memory Memory that ...
Check if an element's content is overflowing?
...le 1: https://codepen.io/Kagerjay/pen/rraKLB ( Real simple example, no javascript, just to clip overflowed items)
Example 2: https://codepen.io/Kagerjay/pen/LBErJL (Single event handler show more / showless on overflowed items)
Example 3: https://codepen.io/Kagerjay/pen/MBYBoJ (Multi event handler...
Can I combine :nth-child() or :nth-of-type() with an arbitrary selector?
...ome)
Because there is currently no pure CSS solution, you'll have to use a script to filter elements and apply styles or extra class names accordingly. For example, the following is a common workaround using jQuery (assuming there is only one row group populated with tr elements within the table):
$...
Difference between this and self in JavaScript
Everyone is aware of this in javascript, but there are also instances of self encountered in the wild, such as here
5 ...
Business logic in MVC [closed]
... is independent of whether you use a domain driven design or a transaction script based approach.
Let me visualize that for you:
Presentation layer: Model - View - Controller
Business layer: Domain logic - Application logic
Data layer: Data repositories - Data access layer
The model tha...
When to use symbols instead of strings in Ruby?
If there are at least two instances of the same string in my script, should I instead use a symbol?
4 Answers
...
How can I quantify difference between two images?
...on:
if __name__ == "__main__":
main()
Now you can put this all in a script and run against two images. If we compare image to itself, there is no difference:
$ python compare.py one.jpg one.jpg
Manhattan norm: 0.0 / per pixel: 0.0
Zero norm: 0 / per pixel: 0.0
If we blur the image and comp...
How do I split a string on a delimiter in Bash?
...
Taken from Bash shell script split array:
IN="bla@some.com;john@home.com"
arrIN=(${IN//;/ })
Explanation:
This construction replaces all occurrences of ';' (the initial // means global replace) in the string IN with ' ' (a single space), then ...
If REST applications are supposed to be stateless, how do you manage sessions?
... would need to retrieve the data: authentication and the URI.
Transaction scripts
As noted above, the client-side application itself calls the REST services along with the authentication that it manages on the client side as well.
What this means for REST services [if done correctly] is to take a...
Django: “projects” vs “apps”
...older often contains a few other things, including but not limited to wsgi scripts, sql scripts etc.
django's management extensions rely on subdirectories. So it makes sense to name packages appropriately.
In short, the reason there is a convention is the same as any other convention - it helps wh...