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Any way to select without causing locking in MySQL?
...ere are locks and opposing to InnoDB those locks are table locks, blocking all requested WRITE locks and all subsequent queries during execution. The original question appears to be about InnoDB though and isolation levels are non-existent for MyISAM too - the docs for the SET TRANSACTION statement ...
Write to UTF-8 file in Python
...u've given me a byte string!"
Try writing the Unicode string for the byte order mark (i.e. Unicode U+FEFF) directly, so that the file just encodes that as UTF-8:
import codecs
file = codecs.open("lol", "w", "utf-8")
file.write(u'\ufeff')
file.close()
(That seems to give the right answer - a fil...
How to set a value to a file input in HTML?
...g/drop event on other elements. See How to set file input value programatically (i.e.: when drag-dropping files)?
– Samuel Liew♦
Nov 29 '17 at 22:01
...
How to break nested loops in JavaScript? [duplicate]
...ested loops by moving inner loops to separate functions, it will run marginally slower because of the extra function calls.
– Tim Down
Oct 14 '09 at 10:39
...
What is the best way to profile javascript execution? [closed]
...e building a lot of javascript code and you want to determine what are actually the bottlenecks in the code. At first I want to see profile stats of every javascript function and execution time. Next would be including DOM functions. This combined with actions that slows things down like operation o...
How to work around the lack of transactions in MongoDB?
...a use case where i need to put 50k records from a file into mongoDB, so in order to maintain the atomic property i thought of using transactions but since 50k json records exceed this limit, it throws error "Total size of all transaction operations must be less than 16793600. Actual size is 16793817...
Understand convertRect:toView:, convertRect:FromView:, convertPoint:toView: and convertPoint:fromVie
...y.backgroundColor = UIColor(white: 1.0, alpha: 0.9)
overlay.layer.borderColor = UIColor.black.cgColor
overlay.layer.borderWidth = 1.0
view.addSubview(overlay)
}
}
var ctrl = MyViewController()
PlaygroundPage.current.liveView = ctrl.view
Remember to show the Assistant E...
Java Equivalent of C# async/await?
...ransform your async/await code into a state machine.
At the same time, in order for async/await to be really practicable in real projects, we need to have lots of Async I/O library functions already in place. For C#, most original synchronized I/O functions has an alternative Async version. The rea...
Difference between DirectCast() and CType() in VB.NET
...
Great answer. So in order of complexity (small to large): DirectCast, TryCast, CType/Convert.ToXYZ(), C<xyz>() would be correct?
– motto
Aug 30 '10 at 21:53
...
What is the difference between integration and unit tests?
...e the feature is working or not.
Feature: To be able to do something
In order to do something
As someone
I want the system to do this thing
Scenario: A sample one
Given this situation
When I do something
Then what I get is what I was expecting for
No doubt: if the test passes, you ca...