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How do I change an HTML selected option using JavaScript?
...}
}
/**
* Get Select Box Text By ID
* @param eid Element ID
* @return string
*/
function getSelectBoxText(eid) {
return document.getElementById(eid).options[document.getElementById(eid).selectedIndex].text;
}
/**
* Get Select Box Value By ID
* @param eid Element ID
* @return string
...
How to tell if JRE or JDK is installed
...an be inferred (most of the time)...
public static boolean isJDK() {
String path = System.getProperty("sun.boot.library.path");
if(path != null && path.contains("jdk")) {
return true;
}
return false;
}
However... on Linux this isn't as reliable... For example...
...
How can I format my grep output to show line numbers at the end of the line, and also the hit count?
I'm using grep to match string in a file. Here is an example file:
8 Answers
8
...
increment date by one month
...
It didn't work with this string: "2014-06-19 15:00:19"
– Meetai.com
Jun 22 '14 at 2:53
1
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What is the default access modifier in Java? [duplicate]
...ltVar;
}
package main;
public class ClassB {
public static void main(String[] args) {
ClassA a = new ClassA();
int v1 = a.publicVar; // Works
int v2 = a.defaultVar; // Works
int v3 = a.privateVar; // Doesn't work
}
}
package other;
public class ClassC...
How to keep a .NET console app running?
...
I prefer using the Application.Run
static void Main(string[] args) {
//Do your stuff here
System.Windows.Forms.Application.Run();
//Cleanup/Before Quit
}
from the docs:
Begins running a standard application message loop on the current thread, without a form....
Reset select2 value and show placeholder
... but when I choose a new value (post reset), I also see selected an "empty string" option (i.e., a box with only an "x" in it).
– kounoupis
Mar 4 '16 at 16:14
...
Javascript - removing undefined fields from an object [duplicate]
...
To remove undefined props in an object we use like this
JSON.parse(JSON.stringify(obj));
Output: {a: 1, c: 3}
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Hidden features of mod_rewrite
...REQUEST_FILENAME} !-d
# map requests to index.php and append as a query string
RewriteRule ^(.*)$ index.php?query=$1
Since Apache 2.2.16 you can also use FallbackResource.
Handling 301/302 redirects:
RewriteEngine on
# 302 Temporary Redirect (302 is the default, but can be specified for clari...
Rounding a double to turn it into an int (java)
...
import java.math.*;
public class TestRound11 {
public static void main(String args[]){
double d = 3.1537;
BigDecimal bd = new BigDecimal(d);
bd = bd.setScale(2,BigDecimal.ROUND_HALF_UP);
// output is 3.15
System.out.println(d + " : " + round(d, 2));
// output is 3.154
...