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How to pass optional arguments to a method in C++?
...ng_else();
}
you can call myfunc in both ways and both are valid
myfunc(10); // Mode will be set to default 0
myfunc(10, 1); // Mode will be set to 1
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Note: These conditional comments are
no longer supported from IE 10 onwards.
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How to make good reproducible pandas examples
...m.seed so we have the exact same frame): df = pd.DataFrame(np.random.randn(100000000, 10)). Saying that, "make this code fast for me" is not strictly on topic for the site...
write out the outcome you desire (similarly to above)
In [3]: iwantthis
Out[3]:
A B
0 1 5
1 4 6
Explain what the ...
How to check if anonymous object has a method?
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answered Jun 9 '10 at 15:48
Sean VieiraSean Vieira
134k2828 gold badges272272 silver badges265265 bronze badges
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Replace values in list using Python [duplicate]
...but it doesn't actually save time:
items = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
for index, item in enumerate(items):
if not (item % 2):
items[index] = None
Here are (Python 3.6.3) timings demonstrating the non-timesave:
In [1]: %%timeit
...: items = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10...
Add st, nd, rd and th (ordinal) suffix to a number
...n '14) accomplishes this:
function ordinal_suffix_of(i) {
var j = i % 10,
k = i % 100;
if (j == 1 && k != 11) {
return i + "st";
}
if (j == 2 && k != 12) {
return i + "nd";
}
if (j == 3 && k != 13) {
return i + "rd";
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is_file or file_exists in PHP
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answered Apr 27 '09 at 10:00
hbwhbw
14.6k55 gold badges4646 silver badges5656 bronze badges
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How to check if all list items have the same value and return it, or return an “otherValue” if they
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edited Dec 9 '10 at 15:49
answered Dec 8 '10 at 17:32
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Javascript parseInt() with leading zeros
...n force the base by passing the base as the 2nd parameter.
parseInt("09", 10) // 9
According to the docs, the 2nd parameter is optional, but it's not always assumed to be 10, as you can see from your example.
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MySQL CONCAT returns NULL if any field contain NULL
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answered Apr 1 '13 at 10:01
John WooJohn Woo
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