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What are the advantages of using a schema-free database like MongoDB compared to a relational databa
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Please review this comment now. MongoDb 4.0 now supports acid transactions.
– Anant Simran Singh
Feb 19 '18 at 7:57
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Is it better to reuse a StringBuilder in a loop?
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Okay, I now understand what's going on, and it does make sense.
I was under the impression that toString just passed the underlying char[] into a String constructor which didn't take a copy. A copy would then be made on the next "wr...
Long press gesture on UICollectionViewCell
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it is deprecated methods for now, you can use - (UIContextMenuConfiguration *)collectionView:(UICollectionView *)collectionView contextMenuConfigurationForItemAtIndexPath:(nonnull NSIndexPath *)indexPath point:(CGPoint)point;
– Vikt...
How would you go about parsing Markdown? [closed]
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The only markdown implementation I know of, that uses an actual parser, is Jon MacFarleane’s peg-markdown. Its parser is based on a Parsing Expression Grammar parser generator called peg.
EDIT: Mauricio Fernandez recently released his Simple Markup Markdown ...
How to count the number of files in a directory using Python
...s.listdir() will be slightly more efficient than using glob.glob. To test if a filename is an ordinary file (and not a directory or other entity), use os.path.isfile():
import os, os.path
# simple version for working with CWD
print len([name for name in os.listdir('.') if os.path.isfile(name)])
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How do arrays in C# partially implement IList?
So as you may know, arrays in C# implement IList<T> , among other interfaces. Somehow though, they do this without publicly implementing the Count property of IList<T> ! Arrays have only a Length property.
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NSIS学习笔记（持续更新） - C/C++ - 清泛网 - 专注C/C++及内核技术
...en(szComponent);
// make a little change to input parameter
// below shift a unit character.
for (int i = 0; i < len; ++i)
szComponent[i] += 1;
// push back on the stack
pushstring(szComponent);
}
/*
nsMessageBoxPlugin::myFunction "abcdefg[来自NSIS的中文测试]"
Pop $0
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UIGestureRecognizer on UIImageView
...rInteractionEnabled still must be set to YES/true in Xcode 8 Objective-C/Swift
– leanne
Sep 5 '17 at 19:19
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Hide separator line on one UITableViewCell
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cell.indentationLevel = 1 // must add this, otherwise default is 0, now actual indentation = indentationWidth * indentationLevel = 10000 * 1 = -10000
and the effect is:
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improve thi...
How do I add the contents of an iterable to a set?
...er but not both. But in a dynamically typed language where it's sometimes difficult to read the code and know the types of objects flying around, I feel hesitant to use these operators. Someone who doesn't recognize them (or perhaps doesn't even realize that Python allows for operators like these) c...