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How to implement the activity stream in a social network
...t as you can. Structure so that you can quickly grab a batch of activities by activity ID or by using a set of friend IDs with time constraints.
Publish the activity IDs to Redis whenever an activity record is created, adding the ID to an "activity stream" list for every user who is a friend/subscri...
403 Forbidden vs 401 Unauthorized HTTP responses
...escribes how
to authenticate.
This is a response generally returned by your web server, not your web
application.
It’s also something very temporary; the server is asking you to try
again.
So, for authorization I use the 403 Forbidden response. It’s
permanent, it’s tied ...
How do I disable right click on my web page?
...
You can do that with JavaScript by adding an event listener for the "contextmenu" event and calling the preventDefault() method:
document.addEventListener('contextmenu', event => event.preventDefault());
That being said: DON'T DO IT.
Why? Because it ...
HTML: Include, or exclude, optional closing tags?
...ight before it.
The forbidden end tags all would be immediately followed by their end tag so it would be kind of redundant to have to type <img src="blah" alt="blah"></img> every time.
I almost always use the optional tags (unless I have a very good reason not to) because it lends to ...
Understanding dispatch_async
...asks before any previous tasks finish. The actual number of tasks executed by a concurrent queue at any given moment is variable and can change dynamically as conditions in your application change. Many factors affect the number of tasks executed by the concurrent queues, including the number of ava...
Equation for testing if a point is inside a circle
...Please note that points that satisfy the above equation with < replaced by == are considered the points on the circle, and the points that satisfy the above equation with < replaced by > are considered the outside the circle.
...
New self vs. new static
..."I will execute in the context of the class which has been actually called by the outside world". ( Assuming the inheritance scenario ). Thanks
– Shubhranshu
Mar 7 '19 at 7:40
...
Manipulate a url string by adding GET parameters
I want to add GET parameters to URLs that may and may not contain GET parameters without repeating ? or & .
15 Answe...
Is there any way to view the currently mapped keys in Vim?
...asically, I'd like to view all of the keys maps made in the current buffer by all of plugins, vimrc, etc, in the current buffer. Is there anyway to do this?
...
What is an Endpoint?
...
Come on guys :) We could do it simpler, by examples:
/this-is-an-endpoint
/another/endpoint
/some/other/endpoint
/login
/accounts
/cart/items
and when put under a domain, it would look like:
https://example.com/this-is-an-endpoint
https://example.com/another/en...