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C# difference between == and Equals()
...resolve to System.Object.ReferenceEquals.
Equals is just a virtual method and behaves as such, so the overridden version will be used (which, for string type compares the contents).
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Check if Python Package is installed
... a python script, just do something like this:
Python 3.3+ use sys.modules and find_spec:
import importlib.util
import sys
# For illustrative purposes.
name = 'itertools'
if name in sys.modules:
print(f"{name!r} already in sys.modules")
elif (spec := importlib.util.find_spec(name)) is not None...
How to remove underline from a link in HTML?
...parating your CSS means more than aliasing css in your html. Eg class="big-and-red" is aliasing not seperation. class="meaningful-domain-item" then css .meaningful-domain-item { //big and red } is. This answer sufficient to remind me which tag to use in my css +1.
– Nathan Coop...
Realistic usage of the C99 'restrict' keyword?
I was browsing through some documentation and questions/answers and saw it mentioned. I read a brief description, stating that it would be basically a promise from the programmer that the pointer won't be used to point somewhere else.
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Best explanation for languages without null
...deling a door. It can be in one of three states: open, shut but unlocked, and shut and locked. Now I could model it along the lines of
class Door
private bool isShut
private bool isLocked
and it is clear how to map my three states into these two boolean variables. But this leaves a fou...
Why do most fields (class members) in Android tutorial start with `m`?
... about camel case rules, but I'm confused with this m rule. What does it stand for? I'm a PHP developer. "We" use first letters of variables as indication of type, like 'b' for boolean, 'i' for integer and so on.
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Can I zip more than two lists together in Scala?
... case, I see that a list of lists would be better anyway, as I need to map and reduce the various sub-lists.
– pr1001
Nov 3 '09 at 1:38
2
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Error: could not find function … in R
I am using R and tried some.function but I got following error message:
10 Answers
1...
Proxy with express.js
...api/BLABLA to another server, for example other_domain.com:3000/BLABLA , and return to user the same thing that this remote server returned, transparently.
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Renaming files in a folder to sequential numbers
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Try to use a loop, let, and printf for the padding:
a=1
for i in *.jpg; do
new=$(printf "%04d.jpg" "$a") #04 pad to length of 4
mv -i -- "$i" "$new"
let a=a+1
done
using the -i flag prevents automatically overwriting existing files.
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