大约有 30,000 项符合查询结果（耗时：0.0521秒） [XML]
Grasping the Node JS alternative to multithreading
... the thread pool to perform a read and set a callback when it's done which means that the read could be happening on a different thread/core while the main node.js program is doing something else.
But from a node.js point of view, it's entirely single threaded and won't directly use more than one c...
Best ways to teach a beginner to program? [closed]
...roject with some simple features which you never planned for. This usually means refactoring and significant debugging, since very few people write even half decent code their first time.
Some projects:
Hangman game
Experimenting with robotics(Vex and Mindstorms are options)
3) Real Project S...
Is there a setting on Google Analytics to suppress use of cookies for users who have not yet given c
...efore Google Analytics runs to prevent tracking from ever happening, which means, for an "opt in to tracking" approach, you'd probably need to implement a mechanism where, on first visit, Google Analytics is automatically disabled in the absence of an opt-in cookie (cookies that determine cookie pre...
Is the VC++ code DOM accessible from VS addons?
...hat matters is that MSVS is using the EDG front end to parse and determine meaning of symbols, to support MSVS IDE actions. EDG IIRC builds its own internal data structures representing the program; I have no reason to believe that those data structures are the "C++ Code DOM", or that they are visi...
Async image loading from url inside a UITableView cell - image changes to wrong image while scrollin
... not initializing the cell image before initiating the background request (meaning that the last image for the dequeued cell will still be visible while the new image is downloading). Make sure to nil the image property of any image views or else you'll see the flickering of images.
A more subtle is...
Should all jquery events be bound to $(document)?
...elegated event handlers.
Because selectors can be fairly involved, this means that jQuery has to parse each selector and then compare it to the characteristics of the original event target to see if it matches each selector. This is not a cheap operation. It's no big deal if there is only one o...
Performance of static methods vs instance methods
...n a register and is often in that register to begin with.
This last point means that in theory, we should expect a static method that takes an object as a parameter and does something with it to be slightly less good than the equivalent as an instance on that same object. Again though, the differen...
Django connection to PostgreSQL: “Peer authentication failed”
...oproject.com/en/1.6/ref/settings/#host ) lies: "HOST [...] An empty string means localhost". This is not true, I had the same problem and I fixed it writing 'localhost'. Thank you for the tip.
– Marco Sulla
Nov 25 '13 at 20:03
...
Android canvas draw rectangle
...
Assuming that "part within rectangle don't have content color" means that you want different fills within the rectangle; you need to draw a rectangle within your rectangle then with stroke width 0 and the desired fill colour(s).
For example:
DrawView.java
import android.content.Cont...
How can I selectively escape percent (%) in Python strings?
...
You can't selectively escape %, as % always has a special meaning depending on the following character.
In the documentation of Python, at the bottem of the second table in that section, it states:
'%' No argument is converted, results in a '%' character in the result.
Th...