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What is the difference between an interface and abstract class?
...'t do anything. It's just a pattern.
For example (pseudo code):
// I say all motor vehicles should look like this:
interface MotorVehicle
{
void run();
int getFuel();
}
// My team mate complies and writes vehicle looking that way
class Car implements MotorVehicle
{
int fuel;
vo...
Visual Studio Copy Project
...rget to delete svn files if you have any (i did!) --> weblogs.asp.net/jgalloway/archive/2007/02/24/…
– qbantek
Jan 16 '12 at 17:14
51
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Stop an input field in a form from being submitted
...nts it from being submitted? Cool, I didn't know that. Does this work on all browsers? Is it part of a standard, or is it an implementation quirk?
– BlairHippo
Jun 9 '10 at 17:12
...
Recursive search and replace in text files on Mac and Linux
...the linux shell, the following command will recursively search and replace all instances of 'this' with 'that' (I don't have a Linux shell in front of me, but it should do).
...
Convert data.frame column format from character to factor
...e to the world of R.
mtcars #look at this built in data set
str(mtcars) #allows you to see the classes of the variables (all numeric)
#one approach it to index with the $ sign and the as.factor function
mtcars$am <- as.factor(mtcars$am)
#another approach
mtcars[, 'cyl'] <- as.factor(mtcars[...
How to change Status Bar text color in iOS
...lightContent
}
Swift 5 and SwiftUI
For SwiftUI create a new swift file called HostingController.swift
import Foundation
import UIKit
import SwiftUI
class HostingController: UIHostingController<ContentView> {
override var preferredStatusBarStyle: UIStatusBarStyle {
return .ligh...
How to frame two for loops in list comprehension python
...ehension. (Perfectly matches the 79 character limit too (without the list call))
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With Mercurial, how can I “compress” a series of changesets into one before pushing?
... out the hg wiki on the rebase command. Since this question is the 3rd overall search result and the first on stackoverflow I thought that info might be useful.
– a.peganz
Oct 2 '15 at 13:33
...
git replacing LF with CRLF
...ons transparently. And it does!
Bad news: value needs to be configured manually.
Good news: it should only be done ONE time per git installation (per project setting is also possible).
How autocrlf works:
core.autocrlf=true: core.autocrlf=input: core.autocrlf=false:
...
setTimeout in for-loop does not print consecutive values [duplicate]
...vident over the fact that setting up a few timeouts causes the handlers to all fire at the same time. It's important to understand that the process of setting up the timer — the calls to setTimeout() — take almost no time at all. That is, telling the system, "Please call this function after 1000...