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Creating a favicon [closed]
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Excellent app. This is one of the best favicon generator sites I've seen.
– Chris Livdahl
Jan 15 '14 at 8:03
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How to reset index in a pandas dataframe? [duplicate]
... This could mean that an intermediate result is being cached.
10000 loops, best of 3: 105 µs per loop
In [299]: %timeit df.index = pd.RangeIndex(len(df.index))
The slowest run took 15.05 times longer than the fastest. This could mean that an intermediate result is being cached.
100000 loops, best ...
How do I add more members to my ENUM-type column in MySQL?
... enum is just a fancy integer, with a string representation. adding items to the end is fine, since you just add meaning old values. but changing the order / removing enums will make those numbers undefined. (eg. 1=>italy, 2=>germany), then extending will be (1=>italy, 2=>germany,...
What's the best way to get the last element of an array without deleting it?
...ray_keys($array); $x = $array[$keys[count($keys)-1]];
these options scale best for very large arrays:
option .5. $x = end($array); reset($array);
option .7. $x = $array[count($array)-1];
option .9. $x = $array[] = array_pop($array);
option 10. $x = $array[array_key_last($array)]; (since PHP 7.3)
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push_back vs emplace_back
...d variadic arguments that are forwarded to the constructor of the appended item.
template <class... Args> void emplace_back(Args&&... args);
It is possible to pass a value_type which will be forwarded to the copy constructor.
Because it forwards the arguments, this means that if y...
How to execute IN() SQL queries with Spring's JDBCTemplate effectivly?
...a query where :ids is replaced with "?,?,?,?,?......" and with enough list items it overflows. Is there a solution that works for large lists?
– nsayer
Apr 26 '10 at 17:45
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How to measure elapsed time in Python?
...Use timeit.default_timer instead of timeit.timeit. The former provides the best clock available on your platform and version of Python automatically:
from timeit import default_timer as timer
start = timer()
# ...
end = timer()
print(end - start) # Time in seconds, e.g. 5.38091952400282
timeit.d...
Unstage a deleted file in git
...t reset HEAD .
At that point I was able to do the checkout of the deleted items:
git checkout -- WorkingFolder/FileName.ext
Finally I was able to restage the rest of the files and continue with my commit.
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How to check if an option is selected?
...unction() {
if($(this).is(':selected')) ...
The non jQuery (arguably best practice) way to do it would be:
$('#mySelectBox option').each(function() {
if(this.selected) ...
Although, if you are just looking for the selected value try:
$('#mySelectBox').val()
If you are looking for the...
What's the purpose of starting semi colon at beginning of JavaScript? [duplicate]
... @pst. Fair enough. I'm sure you can code fine in your style. Indeed best practice is subjective. Your statement 'Once the rules for when to start a line with a semi-colon are known...' exposes why always using a semi-colon is best practice. Because then you don't need to know these additiona...