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SQL SELECT speed int vs varchar
...ver see it. Depending upon CPU, implementation (client/server, web/script, etc) you probably will not see it until you hit few hundred comparisons on the DB server (maybe even a couple thousand comparisons before it is noticeable).
To void the incorrect dispute about hash comparisons. Most hashing...
Using C# reflection to call a constructor
...
I don't think GetMethod will do it, no - but GetConstructor will.
using System;
using System.Reflection;
class Addition
{
public Addition(int a)
{
Console.WriteLine("Constructor called, a={0}", a);
}
}
class Test
{
static void Main()
{
...
Fastest way to check a string contain another substring in JavaScript?
...create a RegExp object and process the string to escape special characters etc.
– Stephen Chung
Mar 14 '11 at 8:36
fro...
C# operator overload for `+=`?
...
For simple (int, float, etc.) types, += could probably be optimized by a smart compiler, because arithmetic is simple. But once you're dealing with objects, all bets are off. Any language faces pretty much the same problems. This is why operator ove...
Incrementing a date in JavaScript
...ready in the initial assignment (it'll automatically correct for Feb 29th, etc.)
– David Hedlund
Sep 9 '10 at 7:50
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Database Structure for Tree Data Structure
... its parents, finding the count of child nodes meeting certain conditions, etc. You need to know what information will be needed from the structure to determine the structure that will best fit your needs.
share
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ASP.NET MVC - Attaching an entity of type 'MODELNAME' failed because another entity of the same type
...th the entity grabbed from the database, I was getting referential errors, etc. I was using "context.Entry(score).State = System.Data.Entity.EntityState.Modified;" but this finally worked! Thank you!!
– firecape
Jan 21 '16 at 13:08
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Usage of protocols as array types and function parameters in swift
...e objects using '===' operator.
I understand this won't work for structs, etc., but it was good enough in my case.
protocol SomeProtocol: class {
func bla()
}
class SomeClass {
var protocols = [SomeProtocol]()
func addElement(element: SomeProtocol) {
self.protocols.append(el...
Multiple Inheritance in C#
...ty of type SteeringWheel, IBrakable implies a property of type BrakePedal, etc.
Once you've done that, you could use the Extension Methods feature added to C# 3.0 to further simplify calling methods on those implied properties, eg:
public interface ISteerable { SteeringWheel wheel { get; set; } }
...
Handling specific errors in JavaScript (think exceptions)
... Hi, welcome to StackOverflow. How is your answer better/more efficient/etc from the other 5 answers already posted?
– mjuarez
Jan 13 at 2:17
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