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Does C++ support 'finally' blocks? (And what's this 'RAII' I keep hearing about?)
...ity of the object user to correctly to explicitly close the DB connection. Now you could argue that this can be done in the finaliser, but resources may have limited availability or other constraints and thus you generally do want to control the release of the object and not rely on the non determin...
How do I list all files of a directory?
...ob.glob("../train/*.png") will give me an array of my paths, as long as I know the name of the folder. So cool!
– Jennifer Crosby
Mar 14 at 4:06
add a comment
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What are the differences between json and simplejson Python modules?
...
Now if I could only get pyflakes to stop complaining about redefinition of unused 'json'
– James McMahon
Aug 25 '12 at 4:17
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Loop through an array of strings in Bash?
...re an array variable
declare -a arr=("element1" "element2" "element3")
## now loop through the above array
for i in "${arr[@]}"
do
echo "$i"
# or do whatever with individual element of the array
done
# You can access them using echo "${arr[0]}", "${arr[1]}" also
Also works for multi-line a...
Does JavaScript have a method like “range()” to generate a range within the supplied bounds?
... confused - due to rodfersou's edit after F Lekschas' comment, his code is now correct.
– eedrah
Sep 13 '18 at 17:15
1
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Setting default value for TypeScript object passed as argument
...
Actually, there appears to now be a simple way. The following code works in TypeScript 1.5:
function sayName({ first, last = 'Smith' }: {first: string; last?: string }): void {
const name = first + ' ' + last;
console.log(name);
}
sayName({ first...
Can't use Swift classes inside Objective-C
...sa. I marked my swift class with @objc but it didn't help. What can I do now?
25 Answers
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Calling C/C++ from Python?
...7
g++ -shared -Wl,-soname,_code.so -o _code.so code.o code_wrap.o
We can now use the function in Python scripts:
#!/usr/bin/env python
import code
a= [[3,5,7],[8,10,12]]
print a
b = code.average(a)
print "Assignment done"
print a
print b
...
Remove unwanted parts from strings in a column
...ings in a column?
6 years after the original question was posted, pandas now has a good number of "vectorised" string functions that can succinctly perform these string manipulation operations.
This answer will explore some of these string functions, suggest faster alternatives, and go into a ti...
What's the cleanest way of applying map() to a dictionary in Swift?
...
No need for temp var and reduce is now a method in Swift 2.0: let newDict = oldDict.reduce([String:Int]()) { (var dict, pair) in dict["new\(pair.1)"] = pair.1; return dict }
– Zmey
Jul 23 '15 at 15:48
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