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What does axis in pandas mean?
...ou talk about acting on rows as being axis=0 yet you draw red arrows going down columns. You talk about axis=1 acting on columns, yet you draw arrows going across a row. Whoever came up with this system didn't think it through very well.
– rocksNwaves
Mar 8 at ...
Check if a JavaScript string is a URL
...gexp from Devshed:
function validURL(str) {
var pattern = new RegExp('^(https?:\\/\\/)?'+ // protocol
'((([a-z\\d]([a-z\\d-]*[a-z\\d])*)\\.)+[a-z]{2,}|'+ // domain name
'((\\d{1,3}\\.){3}\\d{1,3}))'+ // OR ip (v4) address
'(\\:\\d+)?(\\/[-a-z\\d%_.~+]*)*'+ // port and path
'(\\?[;...
What is std::promise?
...shes, our result is ready:
auto res = fut.get(); // as before
Now we're down to the lowest level: How would we implement the packaged task? This is where the std::promise comes in. The promise is the building block for communicating with a future. The principal steps are these:
The calling thre...
Redirecting EC2 Elastic Load Balancer from HTTP to HTTPS
I want to redirect all the HTTP request to https request on ELB . I have two EC2 instances. I am using nginx for the server. I have tried a rewriting the nginx conf files without any success. I would love some advice on it.
...
How do I create a constant in Python?
...
Why is this answer still so far down?! The __slots__ solution is so elegant and effective. From everything I have read, this is about as close as it gets to creating constants in Python. Thank you very much. And for everyone interested, here is a brilliant ...
C# vs Java Enum (for those new to C#)
... a java camp. (The link points to the differences about enums (scroll up / down for other things)
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“Undefined reference to” template class constructor [duplicate]
...ker will correctly ignore the duplicate implementations. But it might slow down the compilation a little.
Summary
The default answer, used by the STL for example and in most of the code that any of us will write, is to put all the implementations in the header files. But in a more private project,...
npm install private github repositories by dependency in package.json
... just fine in all scenarios i needed :
"dependencies": {
"GitRepo": "git+https://<token-from-github>:x-oauth-basic@github.com/<user>/<GitRepo>.git"
}
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Do on-demand Mac OS X cloud services exist, comparable to Amazon's EC2 on-demand instances? [closed]
...
List last updated on Apr 24, 2020:
We used and liked:
https://MacStadium.com/
Here are some other sites that I am aware of. (Note: I only personally have used MacStadium.com)
https://flow.swiss/
https://hostmyapple.com/
https://macincloud.com/
https://macminivault.com/
https...
Push to GitHub without a password using ssh-key
...ing you for a username and password, your origin remote is pointing at the HTTPS URL rather than the SSH URL.
Change it to ssh.
For example, a GitHub project like Git will have an HTTPS URL:
https://github.com/<Username>/<Project>.git
And the SSH one:
git@github.com:<Username>...