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Do sealed classes really offer performance Benefits?
...MSIL code was emitted.
public class NormalClass {
public void WriteIt(string x) {
Console.WriteLine("NormalClass");
Console.WriteLine(x);
}
}
public sealed class SealedClass {
public void WriteIt(string x) {
Console.WriteLine("SealedClass");
Console.Writ...
How to decide font color in white or black depending on background color?
...Color, darkColor) {
var color = (bgColor.charAt(0) === '#') ? bgColor.substring(1, 7) : bgColor;
var r = parseInt(color.substring(0, 2), 16); // hexToR
var g = parseInt(color.substring(2, 4), 16); // hexToG
var b = parseInt(color.substring(4, 6), 16); // hexToB
return (((r * 0.299) + (g * ...
Is there an exponent operator in C#?
... #region --------------- Methods ----------------
public override string ToString()
{
return _value.ToString();
}
#endregion ------------ Methods ----------------
#region -------------- Operators ---------------
// Change the ^ operator...
Event on a disabled input
...vidual container of its own, if they aren't already laid out that way - an extra <span> or a <div>, say - just to make it easy to distinguish which disabled input was clicked).
The downside is that this trick unfortunately won't works for older browsers that don't support the pointer-...
How to prevent robots from automatically filling up a form?
...t techniques like captcha, 1+1=? stuff work well, but they also present an extra step impeding the free quick use of the application (I'm not looking for anything like that please).
...
How to scale an Image in ImageView to keep the aspect ratio
... were having this on our image view, where the height included all of this extra whitespace. It isn't "transparent pixels", since we had fill_parent for width, and wrap_content for height. If you don't have adjustViewBounds=true, then you get the extra whitespace. After setting that to true, our iss...
Git - Difference Between 'assume-unchanged' and 'skip-worktree'
...ying to pull anyway
git stash
git pull
Using skip-worktree results in some extra manual work but at least you wouldn’t lose any data if you had any local changes.
File with assume-unchanged flag: Discards all local changes without any possibility to restore them. The effect is like ‘git reset ...
Why would iterating over a List be faster than indexing through it?
...effectively O(N^2) just to traverse the list!
If instead I did this:
for(String s: list) {
System.out.println(s);
}
then what happens is this:
head -> print head -> item1 -> print item1 -> item2 -> print item2 etc.
all in a single traversal, which is O(N).
Now, going to th...
Swift: Testing optionals for nil
... nil to move for the next condition. If only nil check is required, remove extra conditions in the following code.
Other than that, if x is not nil, the if closure will be executed and x_val will be available inside. Otherwise the else closure is triggered.
if let x_val = x, x_val > 5 {
//x...
How can I wait In Node.js (JavaScript)? l need to pause for a period of time
...f you want to happen after that pause
console.log('Blah blah blah blah extra-blah');
}
// call the first chunk of code right away
function1();
// call the rest of the code and have it execute after 3 seconds
setTimeout(function2, 3000);
It's similar to JohnnyHK's solution, but much neater an...