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Sockets: Discover port availability using Java
...implementation coming from the Apache camel project:
/**
* Checks to see if a specific port is available.
*
* @param port the port to check for availability
*/
public static boolean available(int port) {
if (port < MIN_PORT_NUMBER || port > MAX_PORT_NUMBER) {
throw new Illegal...
How to print matched regex pattern using awk?
...lt is called a record, denoted by $0. At least read up the documentation.
If you only want to get print out the matched word.
awk '{for(i=1;i<=NF;i++){ if($i=="yyy"){print $i} } }' file
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How to set caret(cursor) position in contenteditable element (div)?
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In most browsers, you need the Range and Selection objects. You specify each of the selection boundaries as a node and an offset within that node. For example, to set the caret to the fifth character of the second line of text, you'd do the following:
function setCaret() {
var el = do...
Is there a difference between `continue` and `pass` in a for loop in python?
Is there any significant difference between the two python keywords continue and pass like in the examples
11 Answers
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Intelligent way of removing items from a List while enumerating in C#
...eAll() method:
myList.RemoveAll(x => x.SomeProp == "SomeValue");
Or, if you need certain elements removed:
MyListType[] elems = new[] { elem1, elem2 };
myList.RemoveAll(x => elems.Contains(x));
This assume that your loop is solely intended for removal purposes, of course. If you do need ...
How do I find out my MySQL URL, host, port and username?
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If you're already logged into the command line client try this:
mysql> select user();
It will output something similar to this:
+----------------+
| user() |
+----------------+
| root@localhost |
+-------------...
Run PHP Task Asynchronously
...l your server load is idle, letting you manage your load quite effectively if you can partition off "tasks which aren't urgent" easily.
Rolling your own isn't too tricky, here's a few other options to check out:
GearMan - this answer was written in 2009, and since then GearMan looks a popular opt...
Check if DataRow exists by column name in c#? [duplicate]
...
You should try
if (row.Table.Columns.Contains("US_OTHERFRIEND"))
I don't believe that row has a columns property itself.
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python ? (conditional/ternary) operator for assignments [duplicate]
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Python has such an operator:
variable = something if condition else something_else
Alternatively, although not recommended (see @karadoc's comment):
variable = (condition and something) or something_else
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Simple 'if' or logic statement in Python [closed]
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If key isn't an int or float but a string, you need to convert it to an int first by doing
key = int(key)
or to a float by doing
key = float(key)
Otherwise, what you have in your question should work, but
if (key < ...