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Create a variable name with “paste” in R?
...e is some precision loss: a <- rnorm(1); a - eval(parse(text=paste(a))) does not return 0 usually.
– user10307643
Oct 7 '19 at 13:31
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Cron jobs and random times, within given hours
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On many systems cron does not use bash by default so it could be better to avoid the bashism $RANDOM: sleep $(( $(od -N1 -tuC -An /dev/urandom) \% 90 ))m.
– pabouk
Jun 18 '15 at 13:57
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SQL SELECT speed int vs varchar
...being imprecise and lacking any specific context or experimental results - doesn't really answer the question. Everyone knows that varchars are allowed to take much more space than ints, but they do NOT have to.
– Marcin Wojnarski
Apr 5 '19 at 12:08
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How to escape quote marks in Exec Command in MSBuild
...escape quotes around the path. I've tried double quote marks, but MSBuild doesn't like it (either that or Windows XP doesn't like it). Anyone know how to code this beast so the map works?
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C# operator overload for `+=`?
...erators list, which are compiled in a special method calls, and CLR itself doesn't know anything about operators. So let's see what exactly stays behind the + and += operators.
See this simple code:
Decimal d = 10M;
d = d + 10M;
Console.WriteLine(d);
Let view the IL-code for this instructions:
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ASP.NET MVC Razor Concatenation
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This post seems to be older but now this does works now in latest MVC:
id="item_@item.TheItemId"
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Can Json.NET serialize / deserialize to / from a stream?
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The current version of Json.net does not allow you to use the accepted answer code. A current alternative is:
public static object DeserializeFromStream(Stream stream)
{
var serializer = new JsonSerializer();
using (var sr = new StreamReader(strea...
Futures vs. Promises
...future);
}
Using std::packaged_task which is a helper (i.e. it basically does what we were doing above) around std::promise you could do the following which is more complete and possibly faster:
template<typename F>
auto async(F&& func) -> std::future<decltype(func())>
{
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Xml configuration versus Annotation based configuration [closed]
...otation provides functionality and acts as a comment in and of itself, and doesn't tie the code down to some specific process in order to function normally without this annotation, then go for annotations. For example, a transactional method marked as being transactional does not kill its operating...
Nested JSON objects - do I have to use arrays for everything?
...:
{
"stuff": {
"onetype": [
{"id":1,"name":"John Doe"},
{"id":2,"name":"Don Joeh"}
],
"othertype": {"id":2,"company":"ACME"}
},
"otherstuff": {
"thing": [[1,42],[2,2]]
}
}
You can use it like this:
obj.stuff.onetype[0].id...