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How to extract the first two characters of a string in shell scripting?
...s creation overhead. All solutions which use external programs will suffer from that overhead.
If you also wanted to ensure a minimum length, you could pad it out before hand with something like:
pax> long="A"
pax> tmpstr="${long}.."
pax> short="${tmpstr:0:2}" ; echo "${short}"
A.
This ...
Why can I pass 1 as a short, but not the int variable i?
...ns, the last one isn't.
The C# specification allows an implicit conversion from int to short for constants, but not for other expressions. This is a reasonable rule, since for constants the compiler can ensure that the value fits into the target type, but it can't for normal expressions.
This rule i...
How do I force Sublime Text to indent two spaces per tab?
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From build 2181. You can configure the settings from Preferences -> Settings - Default/User. Best to put it in the User settings as that is the intended approach.
– Kevin Jalbert
Feb ...
How to calculate a logistic sigmoid function in Python?
...scipy.org/doc/scipy/reference/generated/scipy.stats.logistic.html
In [1]: from scipy.stats import logistic
In [2]: logistic.cdf(0.458)
Out[2]: 0.61253961344091512
which is only a costly wrapper (because it allows you to scale and translate the logistic function) of another scipy function:
In [3...
JavaScript global event mechanism
...r handling facility in JavaScript? The use case is catching function calls from flash that are not defined.
10 Answers
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Correct way to write line to file?
...ith open('somefile.txt', 'a') as the_file:
the_file.write('Hello\n')
From The Documentation:
Do not use os.linesep as a line terminator when writing files opened in text mode (the default); use a single '\n' instead, on all platforms.
Some useful reading:
The with statement
open()
'a...
how to change uiviewcontroller title independent of tabbar item title
...e tabBarItem onto the navigation controller instead for it to be picked up from the tab bar controller.
None of the answers posted by others worked for me because my tab bar's view controllers all have navigation controllers at their root - this is a common hierarchy pattern for UITabBarController....
Add Variables to Tuple
..., 2, 3, 4, 5, 6)
c = b[1:] # (2, 3, 4, 5, 6)
And, of course, build them from existing values:
name = "Joe"
age = 40
location = "New York"
joe = (name, age, location)
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How do you remove the title text from the Android ActionBar?
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When should I cal the methods? I mean from which method (activity, fragment) should it be called?
– ka3ak
Oct 13 '18 at 10:53
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Is it possible to decompile a compiled .pyc file into a .py file?
...it possible to get some information out of the .pyc file that is generated from a .py file?
7 Answers
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