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How do I generate random numbers in Dart?
...ich delegates to window.crypto.getRandomValues() in the browser and to the OS (like urandom on the server)
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Function to clear the console in R and RStudio
...nts a single blank line to my interactive terminal (on both Ubuntu and Mac OSX)
– Scott Ritchie
May 27 '13 at 13:00
2
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Equation (expression) parser with precedence?
...p(1), pi: Math.atan2(1,1)*4 };
// input for parsing
// var r = { string: '123.45+33*8', offset: 0 };
// r is passed by reference: any change in r.offset is returned to the caller
// functions return the parsed/calculated value
function parseVal(r) {
var startOffset = r.offset;
var value;
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Comment shortcut Android Studio
...mbo just folds the block of code. Any clue?
– danielrosero
Mar 13 '18 at 22:48
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What does “abstract over” mean?
... def add(a: Product, b: Product) = Product(a.value * b.value)
}
val sumOf123 = mapReduce(List(1,2,3), Sum)
val productOf456 = mapReduce(List(4,5,6), Product)
We have abstracted over monoids and foldables.
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Listing all extras of an Intent
...n Intent.
import java.util.Iterator;
import java.util.Set;
import android.os.Bundle;
public static void dumpIntent(Intent i){
Bundle bundle = i.getExtras();
if (bundle != null) {
Set<String> keys = bundle.keySet();
Iterator<String> it = keys.iterator();
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How to style input and submit button with CSS?
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This was very helpful, as Safari for iOS correctly applies my style to buttons, but not to <input type="submit"> :)
– CrushedPixel
Oct 13 '15 at 9:35
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MySQL root access from all hosts
...d restart mysql
service mysql restart
By default it binds only to localhost, but if you comment the line it binds to all interfaces it finds. Commenting out the line is equivalent to bind-address=*.
To check where mysql service has binded execute as root:
netstat -tupan | grep mysql
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Android getting value from selected radiobutton
...ested and working. Check this
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import android.widget.Toast;
public class MyAn...
ListView addHeaderView causes position to increase by one?
.... I added an emptyView and a headerView. Adding the headerView causes the position in the onItemClick to be increased by one.
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