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What is the most efficient way to deep clone an object in JavaScript?
...actical.
class StructuredCloner {
constructor() {
this.pendingClones_ = new Map();
this.nextKey_ = 0;
const channel = new MessageChannel();
this.inPort_ = channel.port1;
this.outPort_ = channel.port2;
this.outPort_.onmessage = ({data: {key, value}}) => {
const r...
How can I force users to access my page over HTTPS instead of HTTP?
...basically like what you wrote, but doesn't have any hardcoded values:
if($_SERVER["HTTPS"] != "on")
{
header("Location: https://" . $_SERVER["HTTP_HOST"] . $_SERVER["REQUEST_URI"]);
exit();
}
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What is the meaning of “POSIX”?
...iew/osfoundations.html . For Windows, see en.wikipedia.org/wiki/POSIX#POSIX_for_Windows : Posix compliance is currently included in Enterprise and Ultimate editions only (not in the cheaper ones!-), though you can get partways w/Cygwin, en.wikipedia.org/wiki/Cygwin .
– Alex Mar...
What does `someObject.new` do in Java?
... dup
4: invokespecial #3; //Method "<init>":()V
7: astore_1
8: new #4; //class Test$TestInner
11: dup
12: aload_1
13: dup
14: invokevirtual #5; //Method java/lang/Object.getClass:()Ljava/lang/Class;
17: pop
18: invokespecial #6; //Method Test$Te...
What techniques can be used to speed up C++ compilation times?
...more than once in a single translation unit.
#pragma once
#ifndef filename_h
#define filename_h
// Header declarations / definitions
#endif
By using both the pragma and the ifndef, you get the portability of the plain macro solution, as well as the compilation speed optimization that some compi...
How to set environment variables in Python?
...
@darth_coder It's true for all processes on Unix-like operating systems. I don't know about the other operating system. Note that shell variables are not stored in the environment unless you export them.
– S...
How do I set bold and italic on UILabel of iPhone/iPad?
...t {
return with([.traitBold, .traitItalic])
}
func with(_ traits: UIFontDescriptor.SymbolicTraits...) -> UIFont {
guard let descriptor = self.fontDescriptor.withSymbolicTraits(UIFontDescriptor.SymbolicTraits(traits).union(self.fontDescriptor.symbolicTraits)) else {
...
Can scrapy be used to scrape dynamic content from websites that are using AJAX?
...t to you, but it's not the case here @Toolkit
– Arion_Miles
Oct 21 '18 at 6:29
1
This is not real...
What are naming conventions for MongoDB?
...tation mentions you may use underscores, also built-in identifier is named _id (but this may be be to indicate that _id is intended to be private, internal, never displayed or edited.
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impro...
How to retry after exception?
... a nice way to retry a block of code on failure.
For example:
@retry(wait_random_min=1000, wait_random_max=2000)
def wait_random_1_to_2_s():
print("Randomly wait 1 to 2 seconds between retries")
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