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Shortest distance between a point and a line segment
...solve this problem, I like this one the best. It is very clear and easy to read. The math behind it though, is a little bit mystical. What does the dot-product divided by the length squared really represent, for example?
– user1815201
Sep 27 '13 at 8:37
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Does Haskell require a garbage collector?
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As others have already pointed out, Haskell requires automatic, dynamic memory management: automatic memory management is necessary because manual memory management is unsafe; dynamic memory management is necessary because for some programs, ...
How to append rows to an R data frame
...lution
This is basically copy&paste of Karsten W. answer on similar thread.
create.3<-function(elems)
{
con <- RSQLite::dbConnect(RSQLite::SQLite(), ":memory:")
RSQLite::dbWriteTable(con, 't', as.data.frame(elems))
return(con)
}
append.3<-function(con, elems)
{
RSQLite::dbWr...
Do HTML WebSockets maintain an open connection for each client? Does this scale?
... information about the scalability of HTML WebSockets. For everything I've read it appears that every client will maintain an open line of communication with the server. I'm just wondering how that scales and how many open WebSocket connections a server can handle. Maybe leaving those connections op...
How to wrap async function calls into a sync function in Node.js or Javascript?
...is saved in a file so you implemented getData using Node.js built-in fs.readFileSync . It's obvious both getData and fs.readFileSync are sync functions. One day you were told to switch the underlying data source to a repo such as MongoDB which can only be accessed asynchronously. You were als...
How do you track record relations in NoSQL?
...? For example, changes his name, and he wrote some comments. His name is already changed in user collection, but how to change all the redundantly stored names in the comments collection?
– Mohammad Kermani
Oct 8 '18 at 14:35
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Better explanation of when to use Imports/Depends
...e, do my own functions need to call library(...) or are all the function already available in the search path? Also, what is SfDA? links?
– SFun28
Dec 26 '11 at 19:01
2
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HTML input - name vs. id [duplicate]
...ers can send whatever they want to the server. Quite often values are also read from input controls, but I'm just trying to say that this is not necessarily the case.
When names can be duplicated
It may sometimes be beneficial that names are shared between controls of any form input type. But when?...
What's the scope of the “using” declaration in C++?
...d the five character std:: prefix adds a lot of line length - which I find reads worse. So I was wondering if a using directive within the namespace containing the class was ok? (Even if within a header.)
– thomthom
Dec 15 '13 at 9:37
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What is the best CSS Framework and are they worth the effort?
Reading on another forum I've came across the world of CSS Frameworks. The one I've been specifically looking at is BluePrint . I was wondering if anyone else had come across CSS frameworks, suggest which is the best and if they are worth the effort?
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