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What is android:weightSum in android, and how does it work?
...tent"
android:layout_weight="1"
android:layout_width="0dp"/>
.....
weightSum is useful for having the layout rendered correctly for any device, which will not happen if you set width and height directly.
...
targetContentOffsetForProposedContentOffset:withScrollingVelocity without subclassing UICollectionVi
...m I have this...
- (void)awakeFromNib
{
self.itemSize = CGSizeMake(75.0, 75.0);
self.minimumInteritemSpacing = 10.0;
self.minimumLineSpacing = 10.0;
self.scrollDirection = UICollectionViewScrollDirectionHorizontal;
self.sectionInset = UIEdgeInsetsMake(10.0, 10.0, 10.0, 10.0);
}
...
Read and overwrite a file in Python
...ilename, 'r+')
text = f.read()
text = re.sub('foobar', 'bar', text)
f.seek(0)
f.write(text)
f.truncate()
f.close()
The functionality will likely also be cleaner and safer using open as a context manager, which will close the file handler, even if an error occurs!
with open(filename, 'r+') as f:
...
What is the use for Task.FromResult in C#
...
answered Oct 31 '13 at 0:40
Stephen ClearyStephen Cleary
349k6363 gold badges575575 silver badges699699 bronze badges
...
Script parameters in Bash
...n the variables $1 and $2 and $3 where the number refers to the argument. $0 is the command itself.
The arguments are seperated by spaces, so if you would provide the -from and -to in the command, they will end up in these variables too, so for this:
./ocrscript.sh -from /home/kristoffer/test.png ...
What differences, if any, between C++03 and C++11 can be detected at run-time?
...le to write a function, which, when compiled with a C compiler will return 0, and when compiled with a C++ compiler, will return 1 (the trivial sulution with
#ifdef __cplusplus is not interesting).
...
Select rows which are not present in other table
...
+500
There are basically 4 techniques for this task, all of them standard SQL.
NOT EXISTS
Often fastest in Postgres.
SELECT ip
FROM ...
Difference between .tagName and .nodeName
What is the difference between $('this')[0].nodeName and $('this')[0].tagName ?
4 Answers
...
Python Matplotlib Y-Axis ticks on Right Side of Plot
...arey=True
– endolith
Dec 17 '17 at 20:19
And what if I want the ticks and labels both left and right?
...
DbArithmeticExpression arguments must have a numeric common type
...|
edited Dec 14 '17 at 11:03
community wiki
7 r...