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How to Flatten a Multidimensional Array?
...ide" the recursion.
$a = array(1,2,array(3,4, array(5,6,7), 8), 9);
$it = new RecursiveIteratorIterator(new RecursiveArrayIterator($a));
foreach($it as $v) {
echo $v, " ";
}
prints
1 2 3 4 5 6 7 8 9
share
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...
Why do I need to explicitly push a new branch?
I am new in git and I am practicing. I created a local branch but I saw that when I did git push my branch was not uploaded to the repository. I had to actually do: git push -u origin --all .
Why is this? Isn't a branch a new change to be pushed by default? Why do I need to run the second com...
How do I implement basic “Long Polling”?
...ge that does nothing, until the data you want to send is available (say, a new message arrives).
Here is a really basic example, which sends a simple string after 2-10 seconds. 1 in 3 chance of returning an error 404 (to show error handling in the coming Javascript example)
msgsrv.php
<?php
if...
Parse an HTML string with JS
...
It's quite simple:
var parser = new DOMParser();
var htmlDoc = parser.parseFromString(txt, 'text/html');
// do whatever you want with htmlDoc.getElementsByTagName('a');
According to MDN, to do this in chrome you need to parse as XML like so:
var parser =...
Why is Double.MIN_VALUE in not negative
...algorithm. I realized that double.MIN_VALUE made no sense in context and did a search. This post comes up before the java docs. It really is a confusing name for what really is double.Epsilon. Not a big deal, took less than a minute to fix, but definitely surprising.
– Ed S....
How do I change my Ruby version using RVM?
.../...) in my ~/.bash_profile and that didn't seem to "take" when i opened a new terminal...but when i added the line below the PATH line in the ~/.bashrc, it did work -- meaning, i could type rvm use 1.9.3 and it would immediately recognize rvm as a command without me needing to first type source ~/....
PDO get the last ID inserted
...unction () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f10680943%2fpdo-get-the-last-id-inserted%23new-answer', 'question_page');
}
);
...
What is DOM Event delegation?
...t.
So what's the benefit?
Imagine you now have a need to dynamically add new <li> items to the above list via DOM manipulation:
var newLi = document.createElement('li');
newLi.innerHTML = 'Four';
myUL.appendChild(newLi);
Without using event delegation you would have to "rebind" the "oncli...
Client-server synchronization pattern / algorithm?
...ox, Google Drive or Yandex.Disk. When the user edits and saves a file, the new file version is uploaded to the cloud completely, overwriting the earlier copy. In case of a conflict, both file versions are saved so that the user can choose which version is more relevant.
Syncing of key-value pairs ca...
Dealing with commas in a CSV file
...t
{
public static void Main()
{
using ( CsvReader reader = new CsvReader( "data.csv" ) )
{
foreach( string[] values in reader.RowEnumerator )
{
Console.WriteLine( "Row {0} has {1} values.", reader.RowIndex, values.Length );
...