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What are the differences between Rust's `String` and `str`?
...an be seen as a fixed-length String that cannot be resized (you can always convert it into a String if you want to resize it).
A very similar relationship exists between [T] and Vec<T> except there is no UTF-8 constraint and it can hold any type whose size is not dynamic.
The use of str on t...
Using an ORM or plain SQL? [closed]
...dog-work of copying database columns to object fields. They usually handle converting the language's date and time types to the appropriate database type. They generally handle one-to-many relationships pretty elegantly as well by instantiating nested objects. I've found if you design your database ...
How to get the raw value an field?
... to set the value to an empty string if the input isn't a valid floating point number.
The value sanitization algorithm is as follows: If the value of the
element is not a valid floating-point number, then set it to the empty
string instead.
By specifying the type (<input type="number"&...
IN vs OR in the SQL WHERE Clause
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I think oracle is smart enough to convert the less efficient one (whichever that is) into the other. So I think the answer should rather depend on the readability of each (where I think that IN clearly wins)
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Log4Net, how to add a custom field to my logging
... return Message;
}
}
}
3) Log4NetExtentedLoggingPatternConverter.cs
namespace Common.Utils.LogHelper
{
public class Log4NetExtentedLoggingPatternConverter : PatternConverter
{
protected override void Convert(TextWriter writer, object state)
{
...
Common MySQL fields and their appropriate data types
...that an unformatted US phone number is too big to be stored as an unsigned int, it must be at least a bigint.
5 Answers
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How to gracefully handle the SIGKILL signal in Java
...n hook. If you can use (SIGTERM) kill -15 the shutdown hook will work. (SIGINT) kill -2 DOES cause the program to gracefully exit and run the shutdown hooks.
Registers a new virtual-machine shutdown hook.
The Java virtual machine shuts down in response to two kinds of events:
The pr...
How do I deserialize a JSON string into an NSDictionary? (For iOS 5+)
...NSString with special characters in NSString strChangetoJSON.
Then you can convert that string to JSON response using above code.
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JavaScript and Threads
...ge:
//As a worker normally take another JavaScript file to execute we convert the function in an URL: http://stackoverflow.com/a/16799132/2576706
function getScriptPath(foo){ return window.URL.createObjectURL(new Blob([foo.toString().match(/^\s*function\s*\(\s*\)\s*\{(([\s\S](?!\}$))*[\s\S])/)...
Correct way to use StringBuilder in SQL
... No, you shouldn't. It's less readable than using +, which will be converted into the same code anyway. StringBuilder is useful when you can't perform all the concatenation in a single expression, but not in this case.
– Jon Skeet
Jan 4 '12 at 11:09
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