scope

问题 This code implements a 60 cell spreadsheet, 6x10 rows,columns. At the end of each row are two labels, one for row total and for running total. The main issue here is how to update the row and running total labels when the calc button is pressed. I would also like to move the button from the bottom of the scrollview to the bottom of the window where it's always visible. Another view for buttons at the bottom? Ti.include("toast.js"); // 3rd-party code; displays notifications var i=0; var r=0;

问题 I have defined a spring bean extending another bean defined as singleton. Which means this: <bean id="aChildBean" parent="aParentBean"> <!-- ......-> </bean> Now, I wonder if I could define the scope "request" in this bean. I know that the child bean inherits the scope of the parent, but I'm not sure that this could logically work. When I tested this, Spring spring generated the exception below: Error creating bean with name 'aChildBean': Scope 'request' is not active for the current thread;

问题 What is the method of controlling scope in Java EE projects. I'm reading about session, request, application scope and that certain beans should be limited to one or the other. How is this generally done? Is it by what type of project the bean is created in, a special annotation, or some other method? In my experience I've noticed that when outside of the same package none of my beans, servlets or DAO's have access to each other unless I inject or import the related class. 回答1: I think you

问题 Lets say I have the below scenario: - (void)someFunction:(id)param { NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; NSObject *objectA = [[NSObject alloc] init]; [objectA doStuff]; // Don't need to release objectA because of the pool if (!someValue) { [pool release]; // Doubt here return; } NSObject *objectB = [[NSObject alloc] init]; [objectB doStuff]; // Don't need to release objectB because of the pool [pool release]; } Is it right to return from inside the pool block in this

问题 I have an event handler which is bound to a 'change' event. The problem is, functions within that function cannot access any elements of the parent function Process.prototype.handleCheckboxChange = function(event) { var rgbs = [] $(':checked').each(function(index,element) { var color = [0,3,4]; rgbs.push(color); }) } I have been reading all around the place about closures, but everything I have seen seems to indicate that an inner function should be able to access its parents local variables,

问题 This question already has answers here : Do let statements create properties on the global object? (5 answers) why don't const and let statements get defined on the window object [duplicate] (2 answers) Closed 5 months ago . I'm trying to better understand the use of this . In experimenting with this code, I found I can access the items in arr by using something like console.log(this.arr[4]) , but only if arr is declared using var . If I declare arr using let or const , I get a TypeError.

问题 Here's my situation: I'm working on a PHP project that uses a few functions I have written to work with an external xml document. What I want to do is import the same functions.php file into many different pages that all use the same code. The problem is that the path to the xml file isn't always the same, and is often dependent upon the view that is currently displayed. What I am trying to do is basically declare a $source = 'path-relative-to-view'; in my view, before I include 'path-to

问题 I have this code: int do_transact(ifstream & inFile, list<shared_ptr<Bike>> bikelist, status s) { int id, i = 0, size = bikelist.size(); float days; string str, str2; char name[50]; list<shared_ptr<Bike>>::iterator it = bikelist.begin(); if (s == NO_STATUS) //performs rental { inFile >> id; inFile >> days; inFile >> str; inFile >> str2; strcpy_s(name, str.c_str()); while (i < size) { if (id == (*it)->id_num) // rents bike { cout << "vvvvvv PERFORMING RENTAL vvvvvv" << endl << endl; cout <<

问题 I am using this UWP sample: https://github.com/microsoftgraph/msgraph-training-uwp It demonstrates Microsoft Graph, A service for allowing useres to login to apps with their microsoft account so that the app can access the users granted data. By default, the sample requests the calandar's scope, to veiw calandar data, but I would like to edit the sample to access the scope of the user. This is because my app uses in app purchases, and is on a public machine, and I want what users do to be

问题 Here is my requirement: I have a playbook where I add dynamic host to group "desthosts" in [Play 1] In [Play 2] I append a string variable "storerecords" with values specific to each host in desthosts group. In [Play 3] I try to remove duplicate entries in "storerecords" variable where the challenge is. I get the undefined 'storerecords' variable error. Below is my playbook. --- - name: Play 1 hosts: localhost tasks: - add_host: name: "{{ item }}" group: desthosts with_items: - "{{ SourceHost