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Resync git repo with new .gitignore file
Is it possible to "refresh" a git repository after updating the gitignore file?
3 Answers
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UITableView : viewForHeaderInSection: not called during reloadData:
I've set up the tableview with correct delegate and datasource linkages.. the reloadData method calls the datasource and the delegate methods except for viewForHeaderInSection: .
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All falsey values in JavaScript
...es in JavaScript
false
Zero of Number type: 0 and also -0, 0.0, and hex form 0x0 (thanks RBT)
Zero of BigInt type: 0n and -0n (new in 2020, thanks GetMeARemoteJob)
"", '' and `` - strings of length 0
null
undefined
NaN
document.all (in HTML browsers only)
This is a weird one. document.all is a ...
How do you get the length of a string?
... use yourstring.length. See reference here and also here.
Update:
To support unicode strings, length need to be computed as following:
[..."????"].length
or create an auxiliary function
function uniLen(s) {
return [...s].length
}
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Plot smooth line with PyPlot
...polate.spline to smooth out your data yourself:
from scipy.interpolate import spline
# 300 represents number of points to make between T.min and T.max
xnew = np.linspace(T.min(), T.max(), 300)
power_smooth = spline(T, power, xnew)
plt.plot(xnew,power_smooth)
plt.show()
spline is depreca...
Why can I use auto on a private type?
...
The rules for auto are, for the most part, the same as for template type deduction. The example posted works for the same reason you can pass objects of private types to template functions:
template <typename T>
void fun(T t) {}
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How to write binary data to stdout in python 3?
...
A better way:
import sys
sys.stdout.buffer.write(b"some binary data")
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Check if URL has certain string with PHP
I would like to know if some word is present in the URL.
15 Answers
15
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how to show lines in common (reverse diff)?
I have a series of text files for which I'd like to know the lines in common rather than the lines which are different between them. Command line unix or windows is fine.
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What should be the values of GOPATH and GOROOT?
... documentation:
The GOPATH environment variable lists places to look for Go code. On
Unix, the value is a colon-separated string. On Windows, the value is
a semicolon-separated string. On Plan 9, the value is a list.
GOPATH must be set to get, build and install packages outside the
s...