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What are the differences between double-dot “..” and triple-dot “…” in Git commit ranges?
Some Git commands take commit ranges and one valid syntax is to separate two commit names with two dots .. , and another syntax uses three dots ... .
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Why use getters and setters/accessors?
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@sbi: One thing that is bought by using a property setter, even in a well-designed framework, is the ability to have an object notify another when a property changes.
– supercat
Aug 23 '12 at ...
What is the difference between self::$bar and static::$bar in PHP?
... and if in a child class, you could come up with an argument to use either one, but self:: will also work if you dont expect to re-declare ever.
– Andrew
Feb 3 '17 at 16:37
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Why is SELECT * considered harmful?
... more time to travel across the network. This is especially true when someone adds new columns to underlying tables that didn't exist and weren't needed when the original consumers coded their data access.
Indexing issues. Consider a scenario where you want to tune a query to a high level of perfo...
Meaning of 'const' last in a function declaration of a class?
...unctions signature which means that you can implement two similar methods, one which is called when the object is const, and one that isn't.
#include <iostream>
class MyClass
{
private:
int counter;
public:
void Foo()
{
std::cout << "Foo" << std::endl;
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How do you remove an invalid remote branch reference from Git?
... reason didn't want to work on their repository.
I suspected the OP had done something that left their tree in an inconsistent state that caused it to behave a bit strangely, and git gc was required to fix up the left behind cruft.
Usually git branch -rd origin/badbranch is sufficient for nuking...
Checkout old commit and make it a new commit [duplicate]
...e revert if you want, although as far as I know you need to do the reverts one at a time:
git revert HEAD # Reverts E
git revert HEAD~2 # Reverts D
That will create a new commit F that's the same contents as D, and G that's the same contents as C. You can rebase to squash those together if ...
What is the documents directory (NSDocumentDirectory)?
Can someone explain to me what the documents directory is on an iOS app and when to use it?
9 Answers
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Injecting a mock into an AngularJS service
...good solution either, because then you're actually testing two services in one test, instead of unit-testing the two services in isolation. So I would like to re-iterate the question. How do you pass a mock service to another service in a unit test?
– Patrick Arnesen
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Constructors vs Factory Methods [closed]
...asses to specify the objects it creates
classes delegate responsibility to one of several helper subclasses, and you want to localize the knowledge of which helper subclass is the delegate
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