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JavaScript hashmap equivalent
...lar JavaScript dictionary. After all, you are in the best position to know what makes your objects unique. That's what I do.
Example:
var key = function(obj){
// Some unique object-dependent key
return obj.totallyUniqueEmployeeIdKey; // Just an example
};
var dict = {};
dict[key(obj1)] = obj1;...
Cleaning up old remote git branches
...
First, what is the result of git branch -a on machine B?
Second, you have already deleted heads/devel on origin, so that's why you can't delete it from machine B.
Try
git branch -r -d origin/devel
or
git remote prune origin
...
How to use ConcurrentLinkedQueue?
...l to the queue is guaranteed thread-safe without any action on your part. What is not guaranteed thread-safe are any operations you perform on the collection that are non-atomic.
For example, this is threadsafe without any action on your part:
queue.add(obj);
or
queue.poll(obj);
However; non...
Reset Entity-Framework Migrations
...ing tables in the database as EF wants to create the tables from scratch.
What to do:
Delete existing migrations from Migrations_History table.
Delete existing migrations from the Migrations Folder.
Run add-migration Reset. This will create a migration in your Migration folder that includes crea...
How to completely remove node.js from Windows
...
What happens when you search the registry for 0.8.11?
– brandonscript
Dec 20 '13 at 20:42
4
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The multi-part identifier could not be bound
... the combination of tables a and b is joined with the table dkcd. In fact, what's happening is
SELECT
…
FROM a, (b LEFT JOIN dkcd ON …)
WHERE …
that is, as you may already have understood, dkcd is joined specifically against b and only b, then the result of the join is combined with a and...
When should you use a class vs a struct in C++?
In what scenarios is it better to use a struct vs a class in C++?
25 Answers
25
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Always pass weak reference of self into block in ARC?
...gh they should, if everything were working properly, be deallocated.
So, what we're worried about is retain cycles, and there's nothing about blocks in and of themselves that create these cycles. This isn't a problem, for example:
[myArray enumerateObjectsUsingBlock:^(id obj, NSUInteger idx, BOOL...
Preferred way to create a Scala list
...ist later, or just foldRight, or reverse the input, which is linear-time.
What you DON'T do is use a List and append to it. This will give you much worse performance than just prepending and reversing at the end.
share
...
How to find the Number of CPU Cores via .NET/C#?
...tand the difference, and if you don't know the difference this is probably what you want.
– Glenn Maynard
Jun 15 '14 at 15:45
1
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