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C# Passing Function as Argument [duplicate]
...s mentioned above works but there are also delegates that do the same task and also define intent within the naming:
public delegate double MyFunction(double x);
public double Diff(double x, MyFunction f)
{
double h = 0.0000001;
return (f(x + h) - f(x)) / h;
}
public double MyFunctionMet...
What is the instanceof operator in JavaScript?
...
instanceof
The Left Hand Side (LHS) operand is the actual object being tested to the Right Hand Side (RHS) operand which is the actual constructor of a class. The basic definition is:
Checks the current object and returns true if the object
is o...
Play a Sound with Python [duplicate]
...
You can use 2to3.py to convert tkSnack.py to Python 3. Place tkSnack.py into the "Lib" folder in your Python directory. Then place the snacklib folder into the "tcl" folder in your Python directory. Tested on Python 3.2.
– jac...
Professional jQuery based Combobox control? [closed]
...mljquery-editable-combo-2/
Should be easy to wrap this into a plugin that converts an existing select tag, though I haven't seen that done yet.
P.S.: The main problem I see with "jQuery Editable Combobox" is that it remains a select list, and it is not obvious at all that you can just start typing...
reformat in vim for a nice column layout
...
@metrix, here is a very clumsy workaround: 1) convert spaces inside delimiters into a different character, 2) then run column as described in the post, 3) then replace your delimiters back to spaces. An example command in visual mode for step #1 is: '<,'>s/"\(\w\+\...
How can I initialize an ArrayList with all zeroes in Java?
...mber of elements it can hold before it needs to resize its internal array (and has nothing to do with the initial number of elements in the list).
To initialize an list with 60 zeros you do:
List<Integer> list = new ArrayList<Integer>(Collections.nCopies(60, 0));
If you want to cre...
Calling dynamic function with dynamic number of parameters [duplicate]
...
You don't need to convert 'arguments' to a REAL array. What's the point in this? It works perfectly without that step...
– James
Mar 24 '09 at 12:16
...
Android - how do I investigate an ANR?
...Application Not Responding). I took a look at the traces.txt file in /data and I see a trace for my application. This is what I see in the trace.
...
FormData.append(“key”, “value”) is not working
....form[i].value;
}
}
const data = formDataToObject.toObj(formObject): // convert "user[email]":"customer@mail.com" => "user":{"email":"customer@mail.com"}
const orderRes = await fetch(`/api/orders`, {
method: 'POST',
credentials: 'same-origin',
headers: {
'Con...
Why does an NSInteger variable have to be cast to long when used as a format argument?
...le on OS X (64-bit), because on that platform NSInteger is defined as long and is a 64-bit integer. The %i format, on the other hand, is for int, which is 32-bit. So the format and the actual parameter do not match in size.
Since NSInteger is 32-bit or 64-bit, depending on the platform, the compile...