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Xcode debugging - displaying images
...about external tools.
What i'm doing to test images while debugging is to convert that raw data into an image-file format, like .png, and then saving it somewhere, and then i'm opening the image with any image viewing tool.
I have a piece of code for that purpose, which look basically like that:
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Android AsyncTask threads limits?
...e in the phone. For all those operations (updates, retrieving data from db and etc.) I use async tasks. As up till now I didn't see why I shouldn't use them, but recently I experienced that if I do some operations some of my async tasks simply stop on pre-execute and don't jump to doInBackground. Th...
Detecting an “invalid date” Date instance in JavaScript
...n Borgar's answer is unnecessary as isNaN() and isFinite() both implicitly convert to number.
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How do I update/upsert a document in Mongoose?
...t = new Contact({
phone: request.phone,
status: request.status
});
// Convert the Model instance to a simple object using Model's 'toObject' function
// to prevent weirdness like infinite looping...
var upsertData = contact.toObject();
// Delete the _id property, otherwise Mongo will return a ...
Concurrent HashSet in .NET Framework?
...t; _data;
This is the recommended option because the type is thread-safe and provide you the same advantages than a HashSet<T> except key and value are different objects.
Source: Social MSDN
ConcurrentBag
If you don't mind about the duplicate entries, you can use the class ConcurrentBag&l...
“unmappable character for encoding” warning in Java
... as EUC-JP and UTF-8.. If -encoding is not specified, the platform default converter is used. (DOC)
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What is the difference between bindParam and bindValue?
What is the difference between PDOStatement::bindParam() and PDOStatement::bindValue() ?
7 Answers
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Overriding id on create in ActiveRecord
...; 8888
I'm not sure what the original motivation was, but I do this when converting ActiveHash models to ActiveRecord. ActiveHash allows you to use the same belongs_to semantics in ActiveRecord, but instead of having a migration and creating a table, and incurring the overhead of the database on ...
How to reset AUTO_INCREMENT in MySQL?
...ue is less than the current maximum value in the
column, no error occurs and the current sequence value is not changed.
See How to Reset an MySQL AutoIncrement using a MAX value from another table? on how to dynamically get an acceptable value.
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How do I check if a column is empty or null in MySQL?
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the NULLIF checks fieldname for the empty value and would convert to NULL if it was empty. The ISNULL returns 1 (true) if the NULLIF succesfully changed an empty field to NULL or if it was already NULL.... try for your self on a null and empty field in a table with the two funct...