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C++ performance vs. Java/C#
...cular machine architecture. Conversely, languages like Java and C# run on top of a virtual machine which abstracts away the native architecture. Logically it would seem impossible for Java or C# to match the speed of C++ because of this intermediate step, however I've been told that the latest com...
What is a monad?
...function which have the IO type, so we can execute impure functions at the top level.
But how does the language prevent pure functions from executing impure functions? This is due to the lazy nature of Haskell. A function is only executed if its output is consumed by some other function. But there i...
How to choose an AES encryption mode (CBC ECB CTR OCB CFB)?
...manipulate the data. So what mode should you use? Coming here you read the top answer (sorry for singling you out myforwik). The first one covered - ECB - is not for you, you want to encrypt more than one block, the next one - CBC - sounds good and you don't need the parallelism of CTR, you don't ne...
Polymorphism in C++
... supporting polymorphism
As promised, for completeness several peripheral topics are covered:
compiler-provided overloads
conversions
casts/coercion
This answer concludes with a discussion of how the above combine to empower and simplify polymorphic code - especially parametric polymorphism (te...
How does the “this” keyword work?
...tion context
This is the case for JavaScript code that is evaluated at the top-level, e.g. when directly inside a <script>:
<script>
alert("I'm evaluated in the initial global execution context!");
setTimeout(function () {
alert("I'm NOT evaluated in the initial global executi...
What is the difference between quiet NaN and signaling NaN?
... showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg cla...
How does PHP 'foreach' actually work?
...e done. See You're being lied to for a more extensive introduction on this topic.
PHP 5
Internal array pointer and HashPointer
Arrays in PHP 5 have one dedicated "internal array pointer" (IAP), which properly supports modifications: Whenever an element is removed, there will be a check whether th...
Relational table naming convention [closed]
...refer my examples at the end)
(the Predicate for an independent table (the top-most parent in an hierarchy) is that it is independent)
thus the Verb Phrase is carefully chosen, so that it is the most meaningful, and generic terms are avoided (this becomes easier with experience). The Verb Phrase is...
What is your most productive shortcut with Vim?
...acters) which runs a file through wc, and inserts a C-style comment at the top of the file containing that word count data. I can apply that "macro" to a file by using a command like: vim +'so mymacro.ex' ./mytarget
(The + command line option to vi and Vim is normally used to start the editing sess...
Which would be better for concurrent tasks on node.js? Fibers? Web-workers? or Threads?
...e system itself is very simple and it makes perfect sense.
Now I want to stop citing the dialogue between these two developers and finish my answer after a last quick example of how these functions work.
In this way, we are doing what OS Scheduler would normally do. We pause our work at some point...