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How is the fork/join framework better than a thread pool?
...r-threading), Intel(R) Core(TM) i7-2720QM CPU @ 2.20GHz) the fib(50) takes 64 seconds with the classic approach and just 18 seconds with the Fork/Join approach which is quite a noticeable gain, although not as much as theoretically possible.
Summary
Yes, in your example Fork/Join has no advantage...
Max or Default?
...t I think it'd go something like this:
Dim x = (From y In context.MyTable _
Where y.MyField = value _
Select CType(y.MyCounter, Integer?)).Max
Or in C#:
var x = (from y in context.MyTable
where y.MyField == value
select (int?)y.MyCounter).Max();
...
How would I create a UIAlertView in Swift?
...ewController: UIViewController {
@IBAction func showAlertButtonTapped(_ sender: UIButton) {
// create the alert
let alert = UIAlertController(title: "My Title", message: "This is my message.", preferredStyle: UIAlertController.Style.alert)
// add an action (button)
...
How to randomize (or permute) a dataframe rowwise and columnwise?
...is in matrix form convert into data.frame
use the sample function from the base package
indexes = sample(1:nrow(df1), size=1*nrow(df1))
Random Samples and Permutations
How do I recursively delete a directory and its entire contents (files + sub dirs) in PHP?
...mdir contains a decent implementation:
function rrmdir($dir) {
if (is_dir($dir)) {
$objects = scandir($dir);
foreach ($objects as $object) {
if ($object != "." && $object != "..") {
if (is_dir($dir. DIRECTORY_SEPARATOR .$object) && !is_link($dir."/"...
os.walk without digging into directories below
...
Use the walklevel function.
import os
def walklevel(some_dir, level=1):
some_dir = some_dir.rstrip(os.path.sep)
assert os.path.isdir(some_dir)
num_sep = some_dir.count(os.path.sep)
for root, dirs, files in os.walk(some_dir):
yield root, dirs, files
...
How do I open links in Visual Studio in my web browser and not in Visual Studio?
...tion.Text
'launch chrome with url
System.Diagnostics.Process.Start( _
Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData) _
+ "\Google\Chrome\Application\chrome.exe", url)
End Sub
Just put your cursor in front of the url and run the macro...
...
Deserialize JSON with C#
...adString("https://api.instagram.com/v1/users/000000000/media/recent/?client_id=clientId");
// Write values
res = value;
dynamic dyn = JsonConvert.DeserializeObject(res);
var lstInstagramObjects = new List<InstagramModel>();
foreach(var obj in dyn.data)
{
lstInstagramObjects.A...
Visualizing branch topology in Git
...etty=format:"%x1b[31m%h%x09%x1b[32m%d%x1b[0m%x20%s"
This will print text-based representation like this:
* 040cc7c (HEAD, master) Manual is NOT built by default
* a29ceb7 Removed offensive binary file that was compiled on my machine and was hence incompatible with other machines.
| * ...
Loading Backbone and Underscore using RequireJS
...pendencies.
require.config({
shim: {
underscore: {
exports: '_'
},
backbone: {
deps: ["underscore", "jquery"],
exports: "Backbone"
}
}
});
//the "main" function to bootstrap your code
require(['jquery', 'underscore', 'backbone'], function ($, _, Backbone) { ...