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What is the difference between save and export in Docker?
... Docker for a couple of days and I already made some images (which was really fun!). Now I want to persist my work and came to the save and export commands, but I don't fully understand them.
...
What are bitwise operators?
I'm someone who writes code just for fun and haven't really delved into it in either an academic or professional setting, so stuff like these bitwise operators really escapes me.
...
What's the correct way to convert bytes to a hex string in Python 3?
...ht but something that was argued over: bugs.python.org/issue3532#msg70950. Q: Would it hurt to have the tohex method of the bytes object to perform this task as well? A: IMO, yes, it would. It complicates the code, and draws the focus away from the proper approach to data conversion (namely, functio...
do { … } while (0) — what is it good for? [duplicate]
...#define FOO(x) { foo(x); bar(x); }
Using this in an if statement would require that you omit the semicolon, which is counterintuitive:
if (condition)
FOO(x)
else
...
If you define FOO like this:
#define FOO(x) do { foo(x); bar(x); } while (0)
then the following is syntactically corre...
How do I parse a string to a float or int?
...ently imperfect for representing decimals. For more, see stackoverflow.com/q/21895756/931277
– dokkaebi
Aug 18 '17 at 21:44
20
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Remove scroll bar track from ScrollView in Android
...ch I want to use the entire width of the screen and be able to make (vertically) scrollable. So I've wrapped the WebView in a ScrollView in my layout XML, but no matter what I do I can't seem to be able to remove the scroll bar track from the right side of the scroll view. Even worse, I can't seem t...
Symbolicating iPhone App Crash Reports
...
Also, if used without an address, it allow you to analyse multiple locations by submitting them one by one.
– Paul Ardeleanu
Mar 12 '12 at 10:03
...
Android Spinner: Get the selected item change event
... answered Nov 11 '09 at 10:50
znqznq
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Meaning of $? (dollar question mark) in shell scripts
...ure.
Hence when scripting; I tend to use the following syntax
if [ $? -eq 0 ]; then
# do something
else
# do something else
fi
The comparison is to be done on equals to 0 or not equals 0.
** Update Based on the comment: Ideally, you should not use the above code block for comparison, refer t...
Finding what branch a Git commit came from
...commit is on
git branch -a --contains <commit>
This will tell you all branches which have the given commit in their history. Obviously this is less useful if the commit's already been merged.
Search the reflogs
If you are working in the repository in which the commit was made, you can sea...