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Linq select objects in list where exists IN (A,B,C)
...ay if it contains more than 1000 items. var allowedStatus = new HashSet<string> { "A", "B", "C" };
– Jay Shah
Nov 9 '18 at 18:14
...
How to recover a dropped stash in Git?
...nt $3}'
...or using Powershell for Windows:
git fsck --no-reflog | select-string 'dangling commit' | foreach { $_.ToString().Split(" ")[2] }
This will show you all the commits at the tips of your commit graph which are no longer referenced from any branch or tag – every lost commit, including ev...
How do I make class methods / properties in Swift?
...thods and you use the class or static keywords.
class Foo {
var name: String? // instance property
static var all = [Foo]() // static type property
class var comp: Int { // computed type property
return 42
}
class func alert() { // type method
...
how to use XPath with XDocument?
...it misleading and confusing here. You can use anything except, with XPath, String.Empty (as the asker discovered). "demo" would be more appropriate to the example.
– Tom Blodget
Feb 16 '16 at 4:05
...
Best practice for creating millions of small temporary objects
...d them instead of creating new instances. The same for, for example, empty strings.
Another source was multiple booleans which were replaced with one int and for each boolean we use just one byte of the int.
share
...
How do I cast a variable in Scala?
...sult of this pattern matching cast into a variable? like in java if it was String a = (String) b; what would the scala equivalent be?
– James McMahon
Jul 19 '12 at 3:58
...
What are naming conventions for MongoDB?
...o name a collection few precautions to be taken :
A collection with empty string (“”) is not a valid collection name.
A collection name should not contain the null character because this defines the end of collection name.
Collection name should not start with the prefix “system.” as this i...
How to check that an element is in a std::set?
...lly get std::set::contains method.
#include <iostream>
#include <string>
#include <set>
int main()
{
std::set<std::string> example = {"Do", "not", "panic", "!!!"};
if(example.contains("panic")) {
std::cout << "Found\n";
} else {
std::cout ...
regex for zip-code
...
^\d{5}(?:[-\s]\d{4})?$
^ = Start of the string.
\d{5} = Match 5 digits (for condition 1, 2, 3)
(?:…) = Grouping
[-\s] = Match a space (for condition 3) or a hyphen (for condition 2)
\d{4} = Match 4 digits (for condition 2, 3)
…? = The pattern before it is optio...
How to break out or exit a method in Java?
....g
import java.util.Scanner;
class demo
{
public static void main(String args[])
{
outerLoop://Label
for(int i=1;i<=10;i++)
{
for(int j=1;j<=i;j++)
{
for(int k=1;k<=j;k++)
...