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What does “use strict” do in JavaScript, and what is the reasoning behind it?
...rs, by detecting more things that could lead to breakages.
Strict mode is now supported by all major browsers.
Inside native ECMAScript modules (with import and export statements) and ES6 classes, strict mode is always enabled and cannot be disabled.
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Java Constructor Inheritance
I was wondering why in java constructors are not inherited? You know when you have a class like this:
10 Answers
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What is the best way to implement nested dictionaries?
...ber in data.items():
vividict[state][county][occupation] = number
And now:
>>> import pprint
>>> pprint.pprint(vividict, width=40)
{'new jersey': {'mercer county': {'plumbers': 3,
'programmers': 81},
'middlesex county': {'progr...
Can't install PIL after Mac OS X 10.9
... tool, in Mountain Lion this was an option on the xcode Download page, but now you have to register with your apple id and download from: https://developer.apple.com/downloads/
Look for Command Line Tools (OS X Mavericks) for Xcode
2) Install everything needed for python (using brew), I believe yo...
What is an example of the simplest possible Socket.io example?
... <script src="cdn.socket.io/socket.io-1.2.1.js"></script> and now it works
– Alexander Mills
Dec 31 '14 at 7:12
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rvm installation not working: “RVM is not a function”
...on, --auto had been deprecated in favour of --auto-dotfiles so the command now is rvm get stable --auto-dotfiles
– Mart Van de Ven
Nov 8 '13 at 3:56
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Centering a background image, using CSS
...the server to do it, but used an imagehosting site, but still check it out now
– X10nD
Apr 15 '10 at 8:03
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Android Studio Stuck at Gradle Download on create new project
...he android studio. It just makes android studio a more fragmented software now with all pieces here and there.
– Ankit Tanna
May 23 '15 at 5:54
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Why doesn't 'ref' and 'out' support polymorphism?
...e, Giraffe, Turtle and Tiger, with the obvious subclassing relationships.
Now suppose you have a method void M(ref Mammal m). M can both read and write m.
Can you pass a variable of type Animal to M?
No. That variable could contain a Turtle, but M will assume that it contains only Mamma...
Checking if an Android application is running in the background
... activity state is briefly locked down to do the switch) that we actually know for sure what the next thing will be.
And the implementation and global behavior here is not guaranteed to remain the same in the future.
I wish I had read this before I posted an answer on the SO, but hopefully it...