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How to delete shared preferences data from App in Android
...a commit()
If you don't care about the return value and you're using this from your application's main thread, consider using apply() instead.
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Understanding prototypal inheritance in JavaScript
... constructing function of an object (SuperCar objects in this case).
Just from the first example, Car.call(this, name) is in the SuperCar constructor function because when you do this:
var mySuperCar = new SuperCar("SuperCar");
This is what JavaScript does:
A fresh, blank object is instantiate...
Managing relationships in Laravel, adhering to the repository pattern
...s (or any other use case). Our "implementation" is built around Eloquent.
From a practical point of view, this makes sense. We're unlikely to change data sources to something Eloquent can't handle (to a non-sql data source).
ORMS
The trickiest part of this setup, for me at least, is determing if ...
defaultdict of defaultdict?
... d[Key_doesnt_exist] will be defaultdict(int).
If you try to access a key from this last defaultdict i.e. d[Key_doesnt_exist][Key_doesnt_exist] it will return 0, which is the return value of the argument of the last defaultdict i.e. int().
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In plain English, what does “git reset” do?
...t there's no branch pointing to it anymore
Digression: This is different from a checkout. If you'd run git checkout B, you'd get this:
- A - B (HEAD) - C (master)
You've ended up in a detached HEAD state. HEAD, work tree, index all match B, but the master branch was left behind at C. If you mak...
Access parent DataContext from DataTemplate
...
At first I thought that the x:Names of parent elements are not accessible from within a templated item, but since I found no better solution, I just tried, and it works fine.
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Injecting $scope into an angular service function()
...ject. Many scope objects can be created (usually prototypically inheriting from a parent scope). The root of all scopes is the $rootScope and you can create a new child-scope using the $new() method of any scope (including the $rootScope).
The purpose of a Scope is to "glue together" the presentat...
What is the difference between supervised learning and unsupervised learning? [closed]
...to different groups, e.g. it can distinguish that faces are very different from landscapes, which are very different from horses.
Since another answer mentions it (though, in an incorrect way): there are "intermediate" forms of supervision, i.e. semi-supervised and active learning. Technically, the...
What's the best way to store Phone number in Django models
...dling
https://github.com/stefanfoulis/django-phonenumber-field
In model:
from phonenumber_field.modelfields import PhoneNumberField
class Client(models.Model, Importable):
phone = PhoneNumberField(null=False, blank=False, unique=True)
In form:
from phonenumber_field.formfields import Phone...
Enable access control on simple HTTP server
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Python 3 solution
Python 3 uses SimpleHTTPRequestHandler and HTTPServer from the http.server module to run the server:
#!/usr/bin/env python3
from http.server import HTTPServer, SimpleHTTPRequestHandler, test
import sys
class CORSRequestHandler (SimpleHTTPRequestHandler):
def end_headers (s...