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Most efficient way to create a zero filled JavaScript array?
...rray(5) you're creating an object that kinda looks like this: { length: 5, __proto__: Array.prototype } - try console.dir( Array(5) ). Notice that it doesn't have any properties 0, 1, 2, etc. But when you apply that unto the Array constructor, it's like saying Array(undefined, undefined, undefined, ...
Convenient C++ struct initialisation
... MSVC.
#include <iostream>
#include <filesystem>
struct hello_world {
const char* hello;
const char* world;
};
int main ()
{
hello_world hw = {
.hello = "hello, ",
.world = "world!"
};
std::cout << hw.hello << hw.world << std::en...
In pure functional languages, is there an algorithm to get the inverse function?
...he functional languages have that option. For example:
f :: a -> Int
f _ = 1
This function does not have an inverse.
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Fastest way to flatten / un-flatten nested JSON objects
...is implementation also has a prototype pollution bug, e.g. unflatten({"foo.__proto__.bar": 42})
– Alex Brasetvik
Feb 19 at 14:06
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What does character set and collation mean exactly?
...
I suggest to use utf8mb4_unicode_ci, which is based on the Unicode standard for sorting and comparison, which sorts accurately in a very wide range of languages.
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How do I parse a string to a float or int?
...
Python method to check if a string is a float:
def is_float(value):
try:
float(value)
return True
except:
return False
A longer and more accurate name for this function could be: is_convertible_to_float(value)
What is, and is not a float in Python may surpris...
Javascript : natural sort of alphanumerical strings
...llator(undefined, {numeric: true, sensitivity: 'base'});
var myArray = ['1_Document', '11_Document', '2_Document'];
console.log(myArray.sort(collator.compare));
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Usages of Null / Nothing / Unit in Scala
...wered Apr 23 '13 at 16:40
pagoda_5bpagoda_5b
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Android Studio inline compiler showing red errors, but compilation with gradle works fine
...ove-said steps, then the issue is resolved.
– hasnain_ahmad
May 10 '18 at 4:55
39
Deleting everyt...
How do I remove code duplication between similar const and non-const member functions?
...& get() const {
return c;
}
char & get() {
return const_cast<char &>(static_cast<const C &>(*this).get());
}
char c;
};
The two casts and function call may be ugly but it's correct. Meyers has a thorough explanation why.
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