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Why does MYSQL higher LIMIT offset slow the query down?
...or me it was from 2minutes to 1 second :)
Other interesting tricks here : http://www.iheavy.com/2013/06/19/3-ways-to-optimize-for-paging-in-mysql/
It works too with strings
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Deserializing JSON data to C# using JSON.NET
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Answer reproduced from https://stackoverflow.com/a/10718128/776476
You can use the C# dynamic type to make things easier. This technique also makes re-factoring simpler as it does not rely on magic-strings.
Json
The json string below is a simpl...
How do I remove documents using Node.js Mongoose?
...you don't feel like iterating, try FBFriendModel.find({ id:333 }).remove( callback ); or FBFriendModel.find({ id:333 }).remove().exec();
mongoose.model.find returns a Query, which has a remove function.
Update for Mongoose v5.5.3 - remove() is now deprecated. Use deleteOne(), deleteMany() or findO...
Kill detached screen session [closed]
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@kapad actually quit works if you write it inline -X -S pid/sockname quit
– Eduard
Jul 4 '14 at 15:24
20
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RichTextBox (WPF) does not have string property “Text”
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@alvinmeimoun Actually, Paragraph() had a Paragraph(Inline) overload at least since .NET 3.5 (and Run(string) was also valid - it's even in the example).
– Dragomok
Jan 6 '17 at 9:57
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POSTing a @OneToMany sub-resource association in Spring Data REST
...reate an association posts entity.
It should look something like below :
http://{server:port}/comment METHOD:POST
{"author":"abc","content":"PQROHSFHFSHOFSHOSF", "post":"http://{server:port}/post/1"}
and it will work perfectly fine.
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UIGestureRecognizer on UIImageView
...nEnabled = YES;
UIPinchGestureRecognizer *pgr = [[UIPinchGestureRecognizer alloc]
initWithTarget:self action:@selector(handlePinch:)];
pgr.delegate = self;
[imageView addGestureRecognizer:pgr];
[pgr release];
:
:
- (void)handlePinch:(UIPinchGestureRecognizer *)pinchGestureRecognizer
{
//handl...
What is exactly the base pointer and stack pointer? To what do they point?
Using this example coming from wikipedia, in which DrawSquare() calls DrawLine(),
8 Answers
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Reverse / invert a dictionary mapping
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For Python 2.7.x
inv_map = {v: k for k, v in my_map.iteritems()}
For Python 3+:
inv_map = {v: k for k, v in my_map.items()}
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Parse email content from quoted reply
...il from any quoted reply text that it might include. I've noticed that usually email clients will put an "On such and such date so and so wrote" or prefix the lines with an angle bracket. Unfortunately, not everyone does this. Does anyone have any idea on how to programmatically detect reply text...