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How to overcome root domain CNAME restrictions?
... applications for our customers. As is obvious they want to use their own domains to refer to those applications, usually they want that any user that either type http://www.customer1.example or http://customer1.example goes to their web application.
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Rails where condition using NOT NIL
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The canonical way to do this with Rails 3:
Foo.includes(:bar).where("bars.id IS NOT NULL")
ActiveRecord 4.0 and above adds where.not so you can do this:
Foo.includes(:bar).where.not('bars.id' => nil)
Foo.includes(:bar).where.not(bars: { id...
Is the practice of returning a C++ reference variable evil?
... the time.
If you mean:
int& getInt() {
int i;
return i; // DON'T DO THIS.
}
That is all sorts of evil. The stack-allocated i will go away and you are referring to nothing. This is also evil:
int& getInt() {
int* i = new int;
return *i; // DON'T DO THIS.
}
Because no...
How to use JUnit to test asynchronous processes
How do you test methods that fire asynchronous processes with JUnit?
17 Answers
17
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How to get a subset of a javascript object's properties
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How did you learn about how to do this? Nowhere in any docs or articles I've seen (including MDN) does it show the arrow syntax being used in Object Destructuring. This is very nice to know.
– papiro
Jan 3 '17 at 5:...
event.preventDefault() vs. return false
...ropagation() will prevent the event from bubbling up and return false will do both. Note that this behaviour differs from normal (non-jQuery) event handlers, in which, notably, return false does not stop the event from bubbling up.
Source: John Resig
Any benefit to using event.preventDefault() ove...
SQL Server reports 'Invalid column name', but the column is present and the query works through mana
...ocking others from accessing the needed resource(s).
Name resolution slows down query execution as two probes must be made to resolve to the likely version of the object (that owned by 'dbo'). This is the usual case. The only time a single probe will resolve the name is if the current user owns an o...
How to determine the encoding of text?
I received some text that is encoded, but I don't know what charset was used. Is there a way to determine the encoding of a text file using Python? How can I detect the encoding/codepage of a text file deals with C#.
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Forgot “git rebase --continue” and did “git commit”. How to fix?
.../12163247/493106
I'd have to try it out, but I think this is what I would do:
Tag your latest commit (or just write down its SHA1 somewhere so you don't lose it): git tag temp
git rebase --abort
Do the rebase again. You'll have to resolve the merge again. :(
git rebase --continue
git cherry-pick t...
How does Task become an int?
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Does an implicit conversion occur between Task<> and int?
Nope. This is just part of how async/await works.
Any method declared as async has to have a return type of:
void (avoid if possible)
Task (no result beyond...