 Tags IOS SQL HTML C RUBY-ON-RAILS MYSQL ASP.NET DEVELOPMENT RUBY .NET LINUX SQL-SERVER REGEX WINDOWS ALGORITHM ECLIPSE VISUAL-STUDIO STRING SVN PERFORMANCE APACHE-FLEX UNIT-TESTING SECURITY LINQ UNIX MATH EMAIL OOP LANGUAGE-AGNOSTIC VB6 # Proposed solution for checking for nulls in an object hierarchy

By : Misty Chele
Date : October 17 2020, 11:12 PM
Wrong. code :

## developing functions that tests whether the proposed solution is a solution?

By : Toriloye
Date : March 29 2020, 07:55 AM
I hope this helps . It all depends on the chosen representation for functions. If you pass them as lambdas, it's trivial to test if a "claim" is true or false:
code :
``````(define (test-claim f1 f2 x)
(= (f1 x) (f2 x)))

For example:

; x^2 + 2x + 1 = 0, x = -1
(test-claim (lambda (x) (+ (* x x) (* 2 x) 1))
(lambda (x) 0)
-1)

=> #t

; x^2 + 2x + 1 = 0, x = 1
(test-claim (lambda (x) (+ (* x x) (* 2 x) 1))
(lambda (x) 0)
1)

=> #f

; 10x – 6 = 7x + 9, x = 5
(test-claim (lambda (x) (- (* 10 x) 6))
(lambda (x) (+ (* 7 x) 9))
5)

=> #t

; 10x – 6 = 7x + 9, x = 10
(test-claim (lambda (x) (- (* 10 x) 6))
(lambda (x) (+ (* 7 x) 9))
10)

=> #f
``````

## C Parameter passing - solution proposed

By : Arabella
Date : March 29 2020, 07:55 AM
Any of those help The line with the problem: , Yeah... The destroy function says:
code :
``````void destroy(Vector* v); // I want a pointer to a Vector
``````
``````destroy(ctrl->repo); // A TransRepository pointer
``````
``````destroy(ctrl->repo->TList);
``````

## Proposed solution: Generate unique IDs in a distributed environment

By : Al Rafiul Hasan
Date : March 29 2020, 07:55 AM
like below fixes the issue I think this looks pretty solid. Each region maintains consistency, and if you use XDCR there are no collisions. INCR is atomic within a cluster, so you will have no issues there. You don't actually need to have the Machine code part of it. If all the app servers within a region are connected to the same cluster, it's irrelevant to infix the 00001 part of it. If that is useful for you for other reasons (some sort of analytics) then by all means, but it isn't necessary.
So it can simply be '4' . 1' (using your example)

## Checking for nulls inside object

By : Jens Birkbak Aagaard
Date : March 29 2020, 07:55 AM
will be helpful for those in need So I want to display these rows from my database as a table, not all columns are filled, some rows have a null for column3 or columnX. , Try this:
code :
``````s += '<tr>';
\$.each(datos[i], function(key, val){
if(!val)
datos[i][key] = "-";
s += ' <td data-type="1">'+ datos[i][key] + '</td>';
});
s += '<td data-align="center"><p data-placement="top"><button class="btn btn-primary btn-xs" onclick=LlenaDatos("' + datos[i].column2+ '")><span class="glyphicon glyphicon-pencil"></span></button></p></td></tr>';
``````

## Need to provide a proposed model solution, which UML diagrams should I use?

By : Emma
Date : March 29 2020, 07:55 AM
Any of those help
Essentially we want to model the interactions between different components in the system. 