return

Purpose of "return" statement in Scala?

Is there any real reason of providing the return statement in Scala? (aside from being more "Java-friendly") ...

Using Return to end the app. Correct?

Hi, I have very simple application just in the body of Main method. I have tried to find out different ways of ending the app except for Environment.Exit() but I entirely forgot I can just call return. Is it correct to use it for ending the app if it just run in Main method? I cannot see any problem but I want to learn as much as I can. ...

Jquery returning undefined

hi am having a problem, am using tabswitch from http://www.hieu.co.uk/blog/index.php/tabswitch/ am trying to add extra functionality to return the total number of tabs am trying to return a value within the function the alert statement in getLength outputs the correct value but the value returned is undefined here is my code: //the...

sqldatasource insert return identity value

Im using SqlDataSource sds = new SqlDataSource(); in code behind and inserting using sds.Insert(); Please tell me how to get inserted record primary key value? Please note im not using stored procedure. ...

Javascript: try/catch return statement

How a return statement inside a try/catch block works? function example() { try { return true; } finally { return false; } } I'm expecting the output of this function to be "true", but instead is "false"! ...

Return error in NSMutableArray

I'm trying to to return a NSMutableArray but I got this error in the console: 2010-10-01 14:12:21.348 Phonebook[1424:a0f] +[LinkedList getListArray]: unrecognized selector sent to class 0x1000053e8 The method code is: - (id)getListArray { ListNode *tmp = iterator; iterator = head; NSMutableArray * list = [NSMutableArray...

mysql left join but return blank row

Hi, i have a small problem where i have this setup... Table: trade names { trade_id : 1 trade_name : olivers guest house} Table Customer { name: me, trade_id: 1 : blah: blah} i do a left join to get the trade name into customers as if you are a guest house you will have a trade name but as a landlord you will not have a tr...

Difference between returns and printing in python?

In python I don't seem to be understanding the return function. Why use it when I could just print it? def maximum(x, y): if x > y: print(x) elif x == y: print('The numbers are equal') else: print(y) maximum(2, 3) This code gives me 3. But using return it does the same exact thing. def maximum(x, ...

Triggering the return key on event unexpectedly refreshes page and gives undefined error - JavaScript

Hey all, When I click in field, type text, and press return on keyboard it triggers the initializeTable function that refreshes page and gives error form[0] undefined. However, when I use change event to change dropdown selection, it doesn't cause this unexpected behavior. So I'm not sure why pressing return key in text field is causin...

Problematic vector return value - not really updated?

I'm having this weird problem: when my program reach this method: //Returns the transpose matrix of this one RegMatrix RegMatrix::transpose() const{ RegMatrix result(numCol,numRow); int i,j; for(i=0;i<numRow;++i) for(j=0;j<numCol;++j){ result._matrix[j][i] = _matrix[i][j]; } return result...

What does `return 0x1;` mean?

When browsing the source of a project on web I've found some weird to me return statement in main: int main() { /* ... */ return 0x1; } So main is returning 0x1 radix 16, but that's 1 radix 10! Shouldn't main return 0? That is incorrect, right? By the way is it Okay to return 0x0? Thanks in advance. ...

return statement in ternary operator c++

I wrote the absolute function using ternary operator as follows int abs(int a) { a >=0 ? return a : return -a; } I get the following error messages ../src/templates.cpp: In function ‘int abs(int)’: ../src/templates.cpp:4: error: expected primary-expression before ‘return’ ../src/templates.cpp:4: error: expected ‘:’ before ‘return’ ....

Efficiency. Function return values versus output parameters

Hi, Function return values versus "output" parameter, which one is faster? I think I best explain using what I am currently working on. // specify identifier and return pointer. SceneNode* createSceneNode(const String& desired_identifier); // f1 // auto-gen identifier and return as string. String createSceneNode(SceneNode*& out_ptr_...

Let a function "return" the super function?

Hi, Given is the following code: function two() { return "success"; } function one() { two(); return "fail"; } If you test the code by calling function one(), you will always get "fail". The question is, how can I return "success" in function one() by only calling function two()? Is that even possible? Regards ...

how to return to top of for loop in javascript

Maybe this is a dumb question but is there a way to return to the top of a loop? Example: for(var i = 0; i < 5; i++) { if(i == 3) return; alert(i); } What you'd expect in other languages is that the alert would trigger 4 times like so: alert(0); alert(1); alert(2); alert(4); but instead, the function is exited imm...

c# is this design "Correct"?

I currently have the following if (!RunCommand(LogonAsAServiceCommand)) return; if (!ServicesRunningOrStart()) return; if (!ServicesStoppedOrHalt()) return; if (!BashCommand(CreateRuntimeBashCommand)) return; if (!ServicesStoppedOrHalt()) ...

Asp.net MVC Facebook.Session.ConnectSession.isConnected() returns false when testing on localhost

Im using the Facebook SDK (http://facebooktoolkit.codeplex.com) to include Facebook-Connect into my Asp.net MVC Project. After someone logs into my Webapplication via Facebook Connect (I implemented that Facebook-Login-Button successfully) I want to fetch some data from the User. Therefore I created an ActionFilter that just checks if th...

Opening external websites with a top bar containing "return to site" link.

In this thread user named Pekka gave me an advice to open external sites in a new window and provide a "return to site" link which would call "windows.close()" function. The problem is, that I don't know how to do such a "top bar" or something else containing the link on the site I open. Should I open the external site and write to its s...

Java return problem

public void question(int col, int n, Node<Integer> part_soln) { if (col==0) stack.push(part_soln); else for (int row=1; row<=n; row++) { if (!exists(row,part_soln) && !unsafe(col,row,col+1,part_soln)) { Node<Integer> new_soln = new Node<Integer>(row,part_soln); questi...

Method with boolean return - if else vs. if

Take for example the following two statements: if (booleanVariable) { doSomething(); return true; } else { return false; } and if (booleanVariable) { doSomething(); return true; } return false; Which one would be preferred? They both return the same result in the end. Any reason one would be better to use than the ot...