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What are C++ functors and their uses?
I keep hearing a lot about functors in C++. Can someone give me an overview as to what they are and in what cases they would be useful?
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JavaScript ternary operator example with functions
...e pretty exciting uses of ternary syntax in your question; I like the last one the best...
x = (1 < 2) ? true : false;
The use of ternary here is totally uncessesary - you could simply write
x = (1 < 2);
Likewise, the condition element of a ternary statement is always evaluated as a Bool...
How does a Java HashMap handle different objects with the same hash code?
...f the key is 235 -> the pair is stored in bucket number 235. (Note that one bucket can store more then one key-value pair).
When you lookup a value in the hashmap, by giving it a key, it will first look at the hash code of the key that you gave. The hashmap will then look into the corresponding ...
Should you choose the MONEY or DECIMAL(x,y) datatypes in SQL Server?
I'm curious as to whether or not there is a real difference between the money datatype and something like decimal(19,4) (which is what money uses internally, I believe).
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Using forked package import in Go
Suppose you have a repository at github.com/someone/repo and you fork it to github.com/you/repo . You want to use your fork instead of the main repo, so you do a
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How to call asynchronous method from synchronous method in C#?
...ecause the synchronous method is already running in that context.
This is one reason why it's a good idea to use ConfigureAwait(false) within every async method as much as possible.
Solution C
AsyncContext.RunTask won't work in every scenario. For example, if the async method awaits something that ...
Skip List vs. Binary Search Tree
...concurrent user. Of the two known locking red-black tree implementations, one essentially has a global lock during tree rebalancing. The other uses fancy (and complicated) lock escalation but still doesn't significantly out perform the global lock version.
lock-free red-black trees don't exist (no...
How do you clear the SQL Server transaction log?
...to do
Back up the log with TRUNCATE_ONLY option and then SHRINKFILE. For one, this TRUNCATE_ONLY option has been deprecated and is no longer available in current versions of SQL Server. Second, if you are in FULL recovery model, this will destroy your log chain and require a new, full backup.
Deta...
How bad is shadowing names defined in outer scopes?
... the warnings and hints it provides me to improve my code. Except for this one which I don't understand:
8 Answers
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Require returns an empty object
...js.org/api/modules.html
If its possible to dynamically add that schema to one of those ActiveRecord objects, that's one way to solve this. This is actually kind of a tricky situation. In fact, even without the module system, this would cause problems for you. If you put all this code in one file, h...