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Detect all changes to a (immediately) using JQuery
...does not handle when text changed via javascript like document.getElementById('txtInput').value = 'some text';
– Mehmet Ataş
Aug 9 '12 at 13:34
...
Java - get pixel array from image
...ageio.ImageIO;
public class PerformanceTest {
public static void main(String[] args) throws IOException {
BufferedImage hugeImage = ImageIO.read(PerformanceTest.class.getResource("12000X12000.jpg"));
System.out.println("Testing convertTo2DUsingGetRGB:");
for (int i = 0; i &l...
How do I wrap a selection with an HTML tag in Visual Studio?
...<Snippet>
<Declarations>
<Literal>
<ID>selected</ID>
<ToolTip>content</ToolTip>
<Default>content</Default>
</Literal>
</Declarations>
<Code Language="html"><![CDATA[<ul>&l...
Using “Object.create” instead of “new”
...n exist, if you call again this method on an existing object instance, the id and name properties will change.
Object.create lets you initialize object properties using its second argument, e.g.:
var userB = {
sayHello: function() {
console.log('Hello '+ this.name);
}
};
var bob = Object....
typeof for RegExp
...vital methods or properties, or by its internal class value (by using {}.toString.call(instaceOfMyObject)).
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Get Root Directory Path of a PHP project
... is what you are looking for, isn't it?
In that case you could explode the string by slashes and return the first one:
$pathInPieces = explode('/', $_SERVER['DOCUMENT_ROOT']);
echo $pathInPieces[0];
This will output the server's root directory.
Update: When you use the constant DIRECTORY_SEPARAT...
Why there is no ConcurrentHashSet against ConcurrentHashMap
...
Set<String> mySet = Collections.newSetFromMap(new ConcurrentHashMap<String, Boolean>());
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How to validate IP address in Python? [duplicate]
...way to validate that an IP entered by the user is valid? It comes in as a string.
11 Answers
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Is Random class thread safe?
Is it valid to share one instance of the Random class between multiple threads? And to call nextInt(int) from multiple threads in particular?
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echo that outputs to stderr
... FYI: if you want to format or do anything besides simply echo the string then you'll have to move the redirect back to the end. For example errcho(){ >&2 echo $@|pr -To5;} won't work. To do something like that you'll have to put the redirect somewhere after the last pipe like: errc...