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In Java, what is the best way to determine the size of an object?
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You can use the java.lang.instrument package
Compile and put this class in a JAR:
import java.lang.instrument.Instrumentation;
public class ObjectSizeFetcher {
private static Instrumentation instrumentation;
public static void premain(String args, Instrumenta...
Clang vs GCC - which produces faster binaries? [closed]
... runs 1% faster, or Clang binaries take up more memory or just fail due to compiler bugs, it's a deal-breaker.
7 Answers
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How can you do anything useful without mutable state?
...ts, and move the imperative state to the stack. A for-loop, for example, becomes recursion:
// Imperative
let printTo x =
for a in 1 .. x do
printfn "%i" a
// Recursive
let printTo x =
let rec loop a = if a <= x then printfn "%i" a; loop (a + 1)
loop 1
Its not very pretty,...
Is Unit Testing worth the effort? [closed]
...eing low. Often it's the test that needs fixing but that's still a good outcome.
TDD helps with coding constipation. When faced with a large and daunting piece of work ahead writing the tests will get you moving quickly.
Unit Tests help you really understand the design of the code you are working o...
Swift Beta performance: sorting arrays
...rn abs_to_nanos(abs) / (double)NANOS_PER_SEC;
}
Here is a summary of the compiler's optimazation levels:
[-Onone] no optimizations, the default for debug.
[-O] perform optimizations, the default for release.
[-Ofast] perform optimizations and disable runtime overflow checks and runtime type c...
How does JavaScript .prototype work?
... use of the word "prototype" is the source of endless confusion amongst newcomers to the language.
Using new with constructor functions allows us to simulate classical inheritance in JavaScript; although JavaScript's inheritance system is - as we have seen - prototypical, and not class-based.
Prio...
Dynamic type languages versus static type languages
What are the advantages and limitations of dynamic type languages compared to static type languages?
9 Answers
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When and why are database joins expensive?
...ance? It sounds convincing, but it doesn't hold water.
Chris Date, who in company with Dr Ted Codd was the original proponent of the relational data model, ran out of patience with misinformed arguments against normalisation and systematically demolished them using scientific method: he got large d...
Creating range in JavaScript - strange syntax
... edited Jan 7 '15 at 12:27
ComFreek
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answered Sep 22 '13 at 23:01
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List of Timezone ID's for use with FindTimeZoneById() in C#?
Can someone please point me to a complete list of all the timezones referenced by the id expected in TimeZoneInfo.FindTimeZoneById() ? I can't find a list anywhere and I've looked through the .NET documentation.
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