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Constructors vs Factory Methods [closed]
...with interfaces).
And this is the main difference and advantage. When you start dealing with a complex class hierarchies and you want to dynamically create an instance of a class from such a hierarchy you get the following code. Factory methods might then take a parameter that tells the method what...
querySelector search immediate children
...
You can't. There's no selector that will simulate your starting point.
The way jQuery does it (more because of a way that qsa behaves that is not to their liking), is that they check to see if elem has an ID, and if not, they temporarily add an ID, then create a full selector st...
How do I detect “shift+enter” and generate a new line in Textarea?
... caret column (not pixels) position in a textarea, in characters, from the start?
function getCaret(el) {
if (el.selectionStart) {
return el.selectionStart;
} else if (document.selection) {
el.focus();
var r = document.selection.createRange();
if (r == n...
What is an Intent in Android?
...
Actually an action means you can start one component from another component using an Intent. That is what it is primarily used for.
– Sreekanth Karumanaghat
Sep 13 '17 at 13:11
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Best way to run scheduled tasks [closed]
...thing could cause the application to stop running and it'd probably only restart on the next user request. Between those times, your tasks don't run!
– teedyay
Feb 12 '09 at 19:41
...
What are “connecting characters” in Java identifiers?
...; i <= Character.MAX_CODE_POINT; i++)
if (Character.isJavaIdentifierStart(i) && !Character.isAlphabetic(i))
System.out.print((char) i + " ");
}
prints
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Checkout another branch when there are uncommitted changes on the current branch
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Preliminary notes
The observation here is that, after you start working in branch1 (forgetting or not realizing that it would be good to switch to a different branch branch2 first), you run:
git checkout branch2
Sometimes Git says "OK, you're on branch2 now!" Sometimes, Git says...
How Python web frameworks, WSGI and CGI fit together
...separate daemon (or "long-running process"), using the WSGI protocol. You start your long-running Django process, then you configure Apache's mod_fastcgi to communicate with this process.
Note that mod_wsgi can work in either mode: embedded or daemon.
When you read up on mod_fastcgi, you'll see ...
How can I find the first occurrence of a sub-string in a python string?
...e the same benchmark results.
s.find(t) #returns: -1, or index where t starts in s
s.index(t) #returns: Same as find, but raises ValueError if t is not in s
Additional knowledge: rfind and rindex:
In general, find and index return the smallest index where the passed-in string starts, an...
How do I tell Matplotlib to create a second (new) plot, then later plot on the old one?
...t(x, w)
Edit: Note that you can number the plots however you want (here, starting from 0) but if you don't provide figure with a number at all when you create a new one, the automatic numbering will start at 1 ("Matlab Style" according to the docs).
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