oop Questions
4
I have created a class 'validate' to validate two fields i.e 'firstname' and 'lastname'. It is not working fine, it is showing error when field is empty but when I submit the form with non-empty fi...
Systemic asked 12/4, 2017 at 15:27
4
Solved
I've been using object-oriented programming practices for 25 years and trying to move toward functional programming for the last 5 years, but my mind always goes towards OOP when I'm trying to do s...
Transpose asked 30/4, 2017 at 10:51
6
Solved
Lua does not have build in support for OO, but it allows you to build it yourself. Could you please share some of the ways one can implement OO?
Please write one example per answer. If you have mo...
2
Or is that considered bad practice or something?
I have one notification triggers 4-5 handlers, which in turn call database to retrieve data. Each those calls can also be called separately,...
1
Solved
Please explain why the following errors do/don't occur:
ff = factor(1:3)
`[.factor`(ff) # okay
base::`[.factor`(ff) # Error in NextMethod("[") : 'NextMethod' called from an anonymous func...
23
Solved
I created a JavaScript object, but how I can determine the class of that object?
I want something similar to Java's .getClass() method.
Laux asked 8/8, 2009 at 18:11
12
I want to save my time and reuse common code across classes that extend PIXI classes (a 2d webGl renderer library).
Object Interfaces:
module Game.Core {
export interface IObject {}
export inter...
Disyllable asked 15/11, 2014 at 17:9
4
Solved
I have the following class which I'm using as the base of all the models in my project:
public abstract class BaseModel
{
static String table;
static String idField = "id";
public static bool...
Monochord asked 18/10, 2013 at 18:56
11
Solved
I have a class that contains only fields and no methods, like this:
class Request(object):
def __init__(self, environ):
self.environ = environ
self.request_method = environ.get('REQUEST_METHOD...
Cabe asked 28/10, 2010 at 16:44
2
Solved
Take a look at this example, and notice the outputs indicated.
<?php
class Mommy
{
protected static $_data = "Mommy Data";
public static function init( $data )
{
static::$_data = $data;
...
Biller asked 2/1, 2011 at 4:51
5
Solved
What are advantages of using UserDict class?
I mean, what I really get if instead of
class MyClass(object):
def __init__(self):
self.a = 0
self.b = 0
...
m = MyClass()
m.a = 5
m.b = 7
I will wr...
8
Solved
I have this method that I want to use $this in but all I get is: Fatal error: Using $this when not in object context.
How can I get this to work?
public static function userNameAvailibility()
{
...
Moten asked 18/2, 2010 at 6:18
8
Solved
Like most developers here and in the entire world, I have been developing software systems using object-oriented programming (OOP) techniques for many years. So when I read that aspect-oriented pro...
13
Solved
I've created a Javascript object via prototyping. I'm trying to render a table dynamically. While the rendering part is simple and works fine, I also need to handle certain client side events for t...
Particularly asked 27/8, 2009 at 2:44
4
Solved
I have an Interface which contains one property. I need to set the default value for that property. How to do that?. Also is it good practice to have a default value for a property in Interface? or...
Humber asked 12/10, 2011 at 5:20
9
Solved
How do I call the parent function from a derived class using C++? For example, I have a class called parent, and a class called child which is derived from parent. Within
each class there is a pri...
Apatite asked 10/12, 2008 at 19:35
2
Solved
I want to be able to proxy all methods of a class inside the constructor of a class itself.
class Boy {
constructor() {
// proxy logic, do something before each call of all methods inside class
...
Quaquaversal asked 6/11, 2021 at 1:34
3
Solved
As of Java 9, methods in an interface can be private. A private method
can be static or an instance method. Since private methods can only be
used in the methods of the interface itself, their use...
5
Solved
Minimal example of the class:
from pydantic import BaseModel
class AdaptedModel(BaseModel):
def get_all_fields(self, alias=False):
return list(self.schema(by_alias=alias).get("properties&qu...
8
Solved
My idea was to implement the following class:
class name(object, name):
def __init__(self, name):
print name
Then the idea was to create two instances of that class:
person1 = name("jean&qu...
2
I would like to type hint class name in method parameter, in this code:
public function addScore($scoreClassName): self
{
$this->score = new $scoreClassName($this->score);
return $this;
...
5
Solved
Is there some equivalent of "friend" or "internal" in php? If not, is there any pattern to follow to achieve this behavior?
Edit:
Sorry, but standard Php isn't what I'm looking for. I'm looking f...
4
How can I pass an object as an argument to a class method and call the method of the passed object when the class method is called?
Say I have:
class myclass:
def __init__(self):
pass
def myfu...
6
Given this code:
trait Base {
fn a(&self);
fn b(&self);
fn c(&self);
fn d(&self);
}
trait Derived : Base {
fn e(&self);
fn f(&self);
fn g(&self);
}
struct S;
...
Countertype asked 20/2, 2015 at 15:49
3
Solved
I have seen an example on Stackexchange (please note the trait accessing the class property):
trait CheckPermissionTrait
{
protected function checkPermission($object_id)
{
$judge = $this->...
© 2022 - 2024 — McMap. All rights reserved.