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What are -moz- and -webkit-? [duplicate]
...efixes for the same effect?
A good explanation of vendor prefixes comes from Peter-Paul Koch of QuirksMode:
Originally, the point of vendor prefixes was to allow browser makers
to start supporting experimental CSS declarations.
Let's say a W3C working group is discussing a grid declara...
How to debug in Django, the good way? [closed]
...a Django view function:
import pdb; pdb.set_trace()
or
breakpoint() #from Python3.7
If you try to load that page in your browser, the browser will hang and you get a prompt to carry on debugging on actual executing code.
However there are other options (I am not recommending them):
* retur...
Useful GCC flags for C
...d.
-Wcast-qual: warn whenever a pointer is cast to remove a type qualifier from the target type*.
-Wswitch-default: warn whenever a switch statement does not have a default case*.
-Wswitch-enum: warn whenever a switch statement has an index of enumerated type and lacks a case for one or more of the ...
The conversion of a datetime2 data type to a datetime data type resulted in an out-of-range value
... null. This will be sent to the datetime column which can hold date values from 1753-01-01 00:00:00 onwards, but not before, leading to the out-of-range exception.
This error can be resolved by either modifying the database field to accept null or by initializing the field with a value.
...
How can I sort a List alphabetically?
...os answer will be the best way to do it. If you combine it with the advice from Tom Hawtin - tackline, you get:
java.util.Collections.sort(listOfCountryNames, Collator.getInstance());
Solution with a TreeSet
If you are free to decide, and if your application might get more complex, then you migh...
Writing a list to a file with Python
...ERROR: Internal Python error in the inspect module.
Below is the traceback from this internal error.
Traceback (most recent call last):
...
MemoryError
(I triggered this error by limiting Python's max. virtual memory to ~100MB with ulimit -v 102400).
Putting memory usage to one side, this method...
How to force keyboard with numbers in mobile website in Android
... direction. We're just trying to see if our customer base will not benefit from this.
– Philll_t
Mar 29 '15 at 21:04
1
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What is the fastest way to check if a class has a function defined?
...he function looks up the arguments in a dict, finds the result in the dict from when the actual function computed the result, and returns the result right away.
Here is a recipe for a memoizing decorator called "lru_cache" by Raymond Hettinger. A version of this is now standard in the functools mo...
Can't install RMagick 2.13.1. Can't find MagickWand.h.
...
For those concerned about where PKG_CONFIG_PATH comes from, if you brew info imagemagick@6, it will tell you that the brew formula is keg-only and not symlinked into /usr/local. It will also tell you to set PKG_CONFIG_PATH: /usr/local/opt/imagemagick@6/lib/pkgconfig if needed.
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How to print HTML content on click of a button, but not the page? [duplicate]
...
This is interesting but when I tried it from an Angular component I didn't get the CSS applied to the new window. Also, the images don't have time to load between the write call and the print call so they don't appear until after the print dialog is done.
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