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How to get default gateway in Mac OSX
... the route that packages will take to a particular host. E.g.
route -n get www.yahoo.com
The output would be similar to:
route to: 98.137.149.56
destination: default
mask: 128.0.0.0
gateway: 5.5.0.1
interface: tun0
flags: <UP,GATEWAY,DONE,STATIC,PRCLONING>
recvpipe sen...
CORS - How do 'preflight' an httprequest?
...r will make the actual request. You can learn more about CORS here: http://www.html5rocks.com/en/tutorials/cors/
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List files in local git repo?
...itory, including those that are only staged but not yet committed.
http://www.kernel.org/pub/software/scm/git/docs/git-ls-files.html
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Post an empty body to REST API via HttpClient
...ingContent.Headers.ContentType = MediaTypeHeaderValue.Parse("application/x-www-form-urlencoded");
var response = client.PostAsync(url, stringContent).Result;
var result = response.Content.ReadAsAsync<model>().Result;
}
...
How do you delete an ActiveRecord object?
...tion
threshold_age = 20
User.where(age: threshold_age).delete_all
https://www.rubydoc.info/docs/rails/ActiveRecord%2FNullRelation:delete_all
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Call a REST API in PHP
...tomatically parses the response into a native PHP object.
$uri = "https://www.googleapis.com/freebase/v1/mqlread?query=%7B%22type%22:%22/music/artist%22%2C%22name%22:%22The%20Dead%20Weather%22%2C%22album%22:%5B%5D%7D";
$response = \Httpful\Request::get($uri)->send();
echo 'The Dead Weather has ...
How to add an auto-incrementing primary key to an existing table, in PostgreSQL?
... difference between GENERATED BY DEFAULT and GENERATED ALWAYS, see https://www.cybertec-postgresql.com/en/sequences-gains-and-pitfalls/.
For altering the sequence, see https://popsql.io/learn-sql/postgresql/how-to-alter-sequence-in-postgresql/.
...
What is the maximum depth of the java call stack?
...It depends on the amount of virtual memory allocated to the stack.
http://www.odi.ch/weblog/posting.php?posting=411
You can tune this with the -Xss VM parameter or with the Thread(ThreadGroup, Runnable, String, long) constructor.
...
What is the difference between server side cookie and client side cookie?
... on the browser.
Browser request example:
GET /index.html HTTP/1.1
Host: www.example.com
Example answer from the server:
HTTP/1.1 200 OK
Content-type: text/html
Set-Cookie: foo=10
Set-Cookie: bar=20; Expires=Fri, 30 Sep 2011 11:48:00 GMT
... rest of the response
Here two cookies foo=10 and b...
Aligning a float:left div to center?
...
Perhaps this what you're looking for - https://www.w3schools.com/css/css3_flexbox.asp
CSS:
#container {
display: flex;
flex-wrap: wrap;
justify-content: center;
}
.block {
width: 150px;
height: 15...