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Get Slightly Lighter and Darker Color from UIColor
...
I got an error: -getHue:saturation:brightness:alpha: not valid for the NSColor NSCalibratedWhiteColorSpace 0 1; need to first convert colorspace.
– Besi
Jan 29 '16 at 18:09
...
Inherit docstrings in Python class inheritance
...out this a while ago, and a recipe was created. Check it out here.
"""
doc_inherit decorator
Usage:
class Foo(object):
def foo(self):
"Frobber"
pass
class Bar(Foo):
@doc_inherit
def foo(self):
pass
Now, Bar.foo.__doc__ == Bar().foo.__doc__ == Foo.foo.__doc__...
Avoid web.config inheritance in child web application using inheritInChildApplications
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I get this error "The configuration section 'configSections' cannot be read because it is missing a section declaration " in my parents web.config file.
– Blankman
Apr 23 '09 at 15:37
...
Iterate through object properties
...inherited from the base class. A good explanation: brianflove.com/2013/09/05/javascripts-hasownproperty-method
– Kyle Richter
Apr 28 '14 at 20:02
...
How to create enum like type in TypeScript?
...gned to it. This is demonstrated below:
let foo: 'Hello';
foo = 'Bar'; // Error: "Bar" is not assignable to type "Hello"
They are not very useful on their own but can be combined in a type union to create a powerful (and useful) abstraction e.g.:
type CardinalDirection =
"North"
| "East"...
How to get the parent dir location
...bspath doesn't validate anything, so if we're already appending strings to __file__ there's no need to bother with dirname or joining or any of that. Just treat __file__ as a directory and start climbing:
# climb to __file__'s parent's parent:
os.path.abspath(__file__ + "/../../")
That's far less...
Absolute vs relative URLs
...
See this: http://en.wikipedia.org/wiki/URI_scheme#Generic_syntax
foo://username:password@example.com:8042/over/there/index.dtb;type=animal?name=ferret#nose
\ / \________________/\_________/ \__/ \___/ \_/ \_________/ \_________/ \__/
| | ...
How do I get the opposite (negation) of a Boolean in Python?
... function
There are also two functions in the operator module operator.not_ and it's alias operator.__not__ in case you need it as function instead of as operator:
>>> import operator
>>> operator.not_(False)
True
>>> operator.not_(True)
False
These can be useful if yo...
What is process.env.PORT in Node.js?
...is your static setting, then your application will result in a 500 gateway error because Amazon is configuring the port for you.
This is a minimal Express application that will deploy on Amazon's Elastic Beanstalk:
var express = require('express');
var app = express();
app.get('/', function (req,...
Object of custom type as dictionary key
...
You need to add 2 methods, note __hash__ and __eq__:
class MyThing:
def __init__(self,name,location,length):
self.name = name
self.location = location
self.length = length
def __hash__(self):
return hash((self.name...