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How does deriving work in Haskell?
...> "parm"
where toL (x:y) = (toLower x):y
unCapalize :: [Char] -> [Char]
unCapalize (x:y) = (toLower x):y
And some borrowed helper code taken from Syb III / replib 0.2.
typeInfo :: DecQ -> Q (Name, [Name], [(Name, Int)], [(Name, [(Maybe Name, Type)])])
typeInfo m =
...
Why do we always prefer using parameters in SQL statements?
...ase, it looks like you're using .NET. Using parameters is as easy as:
C#
string sql = "SELECT empSalary from employee where salary = @salary";
using (SqlConnection connection = new SqlConnection(/* connection info */))
using (SqlCommand command = new SqlCommand(sql, connection))
{
var salaryP...
SQL Query Where Field DOES NOT Contain $x
...st
SELECT a FROM x WHERE x.b NOT IN (1, 2, 3, 6);
If you are searching a string, go for the LIKE operator (but this will be slow):
-- Finds all rows where a does not contain "text"
SELECT * FROM x WHERE x.a NOT LIKE '%text%';
If you restrict it so that the string you are searching for has to st...
Recursive search and replace in text files on Mac and Linux
...takes the argument after -i as the extension for backups. Provide an empty string (-i '') for no backups.
The following should do:
LC_ALL=C find . -type f -name '*.txt' -exec sed -i '' s/this/that/ {} +
The -type f is just good practice; sed will complain if you give it a directory or so.
-exec i...
Reading value from console, interactively
...data", function(d) {
// note: d is an object, and when converted to a string it will
// end with a linefeed. so we (rather crudely) account for that
// with toString() and then trim()
console.log("you entered: [" +
d.toString().trim() + "]");
});
...
What is the reason behind “non-static method cannot be referenced from a static context”? [duplicate
...e the data. Together, they form an object.
public class Foo
{
private String foo;
public Foo(String foo){ this.foo = foo; }
public getFoo(){ return this.foo; }
public static void main(String[] args){
System.out.println( getFoo() );
}
}
What could possibly be the resul...
Invoking a static method using reflection
...
// String.class here is the parameter type, that might not be the case with you
Method method = clazz.getMethod("methodName", String.class);
Object o = method.invoke(null, "whatever");
In case the method is private use getDecl...
Print array to a file
... @user1899415 implode the array with PHP_EOL and write the resulting string to file.
– Gordon
Aug 22 '13 at 8:56
13
...
How do I cast a JSON object to a typescript class
...pying the data:
Copying AJAX JSON object into existing Object
Parse JSON String into a Particular Object Prototype in JavaScript
In essence, you'd just :
var d = new MyRichObject();
d.copyInto(jsonResult);
share
...
What is the difference between exit() and abort()?
...void)
{
cout<<"exit function 2"<<endl;
}
int main(int argc, char**argv)
{
atexit (myProgramIsTerminating1);
atexit (myProgramIsTerminating2);
//abort();
return 0;
}
Comments:
If abort is uncommented: nothing is printed and the destructor of someobject will not be called. ...