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Short description of the scoping rules?
...e5
x()
The for loop does not have its own namespace. In LEGB order, the scopes would be
L: Local in def spam (in code3, code4, and code5)
E: Any enclosing functions (if the whole example were in another def)
G: Were there any x declared globally in the module (in code1)?
B: Any buil...
Getters \ setters for dummies
...examples, the internal property names are abstracted with an underscore in order to discourage users from simply doing foo.bar vs. foo.get( 'bar' ) and getting an "uncooked" value. You can use conditional code to do different things depending on the name of the property being accessed (via the name ...
How to get function parameter names/values dynamically?
...e minified name is. Angular gets around this by allowing you to pass in an ordered array of strings that matches the order of the arguments when registering them with the DI container. So on with the solution:
var esprima = require('esprima');
var _ = require('lodash');
const parseFunctionArgumen...
How to paste yanked text into the Vim command line
..., and @a will replay the macro (probably you knew that one, very useful in order to avoid repetitive tasks)
cf. :help q, help @
Corollary from the previous example: If you have 8go in the clipboard, then @+ will play the clipboard contents as a macro, and thus go to the 8th byte of your file. Actu...
When to use reinterpret_cast?
...is true that reinterpret_cast is not portable because of one reason - byte order (endianness). But this is often surprisingly the best reason to use it. Let's imagine the example: you have to read binary 32bit number from file, and you know it is big endian. Your code has to be generic and works pro...
Remote debugging with Android emulator
... to notify a local adb server at startup; hence the need to restart adb in order for it to probe the local 5554+ ports.
Note that the localhost in the ssh command refers to the local interface of the remote machine.
adb devices showed a new emulator — emulator-5554 — and I could use it as if i...
YouTube iframe API: how do I control an iframe player that's already in the HTML?
...rce code for an explanation.
On 17 may 2012, the code size was doubled in order to take care of the player's ready state. If you need a compact function which does not deal with the player's ready state, see http://jsfiddle.net/8R5y6/.
/**
* @author Rob W <gwnRob@gmail.com>
* @websit...
Insert code into the page context using a content script
.... Resources must be listed in the web_accessible_resources manifest key in order to be loaded by pages outside the extension.
Method 2: Inject embedded code
This method is useful when you want to quickly run a small piece of code. (See also: How to disable facebook hotkeys with Chrome extension?).
...
扩展App Inventor：具有多点触控和手势检测功能 · App Inventor 2 中文网
...his event, so it detects the rotation even when we do not intend it to. In order to solve this problem, we add a buffer when we detect $MotionEvent.ACTION_MOVE$, so that we only fire “rotation” when the positions of two fingers change above some threshold.
Figure 6. Block designed for Rotatio...
Post-increment and pre-increment within a 'for' loop produce same output [duplicate]
... the old value of i after incrementing, I think ++i may be shorter (on the order of 1-2 instructions).
– danben
Feb 5 '11 at 0:18
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