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How do I implement basic “Long Polling”?
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Tornado is designed for long-polling, and includes a very minimal (few hundred lines of Python) chat app in /examples/chatdemo , including server code and JS client code. It works like this:
Clients use JS to ask for an updates since (number of last message), serve...
Move an array element from one array position to another
... block. As Javascript arrays are sparse this will extend the array size to include the new_index for the .splice to work but without needing to create any intervening elements.
– Rebecka
Jul 3 '15 at 11:23
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GitHub: How to make a fork of public repository private?
...l repository
If you want to mirror a repository in another location, including getting updates from the original, you can clone a mirror and periodically push the changes.
$ git clone --mirror https://github.com/exampleuser/repository-to-mirror.git
# Make a bare mirrored clone of the reposito...
How to download a file from a URL in C#?
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Include this namespace
using System.Net;
Download Asynchronously and put a ProgressBar to show the status of the download within the UI Thread Itself
private void BtnDownload_Click(object sender, RoutedEventArgs e)
{
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Get a list of URLs from a site [closed]
... site has URL query parameters, server-side rewritten URLs, or any kind of include/require/etc. assembling of pages, this won't really work.
– T.J. Schuck
Jun 24 '11 at 19:41
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Python requests - print entire http request (raw)?
... hook can be used on a request to print full request-response pair's data, including effective URL, headers and bodies, like:
import textwrap
import requests
def print_roundtrip(response, *args, **kwargs):
format_headers = lambda d: '\n'.join(f'{k}: {v}' for k, v in d.items())
print(textwr...
How to make an AJAX call without jQuery?
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Please include CORS request also by including this line as an option. 'xhr.withCredentials = true;'
– Akam
Mar 2 '16 at 11:48
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How to reverse a singly linked list using only two pointers?
...but it's not quite working in the form above. Here's a working version:
#include <stdio.h>
typedef struct Node {
char data;
struct Node* next;
} Node;
void print_list(Node* root) {
while (root) {
printf("%c ", root->data);
root = root->next;
}
printf("\n");
}
Node*...
Django URL Redirect
...2.x:
from django.shortcuts import redirect
from django.urls import path, include
urlpatterns = [
# this example uses named URL 'hola-home' from app named hola
# for more redirect's usage options: https://docs.djangoproject.com/en/2.1/topics/http/shortcuts/
path('', lambda request: red...
How in node to split string by newline ('\n')?
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A solution that works with all possible line endings including
mixed ones and keeping empty lines as well can be achieved using
two replaces and one split as follows
text.replace(/\r\n/g, "\r").replace(/\n/g, "\r").split(/\r/);
some code to test it
var CR = "\x0D"; // ...