大约有 10,000 项符合查询结果（耗时：0.0374秒） [XML]
R and version control for the solo data analyst
...ed with version control for data analysis with R (e.g., examples, workflow ideas, software, links to guides)?
Keep files that generate data or reports under version control, be selective. If you are using something like Sweave, store your .Rnw files and not the .tex files that get produced from t...
How to use concerns in Rails 4
...cept. It has to do with code reuse as in the example below. Basically, the idea is to extract common and / or context specific chunks of code in order to clean up the models and avoid them getting too fat and messy.
As an example, I'll put one well known pattern, the taggable pattern:
# app/models...
How to get the ThreadPoolExecutor to increase threads to max before queueing?
...
As much as I don't like the idea of breaking the contract of Queue in order to accomplish this, you're certainly not alone in your idea: groovy-programming.com/post/26923146865
– bstempi
Oct 23 '13 at 13:26
...
How to sign an android apk file
...
For users of IntelliJ IDEA or Android Studio make these steps:
* From the menu Build/Generate signed APK
* You need to create a keystore path. From the dialog click Create new. You will create a jks file that includes your keys. Select folder, def...
Iterator Loop vs index loop [duplicate]
...d during the iteration using iterators will put you in big troubles).
The idea of having a generic loop that works when you will change later the container type is also mostly nonsense in real cases. Unfortunately the dark side of a strictly typed language without serious typing inference (a bit be...
How many Activities vs Fragments?
...t agree with the pattern as suggested.
I also agree that it is not a good idea to duplicate your app's logic across many Activities (see DRY Principle on wikipedia).
I prefer the pattern used by the ActionBarSherlock Fragments Demo app (download here and source code here). The demo that most clo...
Using node.js as a simple web server
...s of all your IP networked devices (WiFi, Cable, Bluetooth) which is a bad idea on any public network as you may potentially get hacked. It's not so bad if you just wanted to demo your app inside a safe fire walled network to show others or connect it to your mobile device on the same network.
...
How to generate keyboard events in Python?
...
i like this idea so far. i cant find a list of the VK_Key's, and could you maybe put up an example function call.
– Inbar Rose
Nov 29 '12 at 7:41
...
What is the best way to prevent session hijacking?
... that the old session UUID can never be used again.
I'm not sure if this idea will work but here goes: Add a serial number into your session cookie, maybe a string like this:
SessionUUID, Serial Num, Current Date/Time
Encrypt this string and use it as your session cookie. Regularly change the se...
Is it possible to decrypt MD5 hashes?
...mple for a (very insecure) hash function (and this illustrates the general idea of it being one-way) would be to take all of the bits of a piece of data, and treat it as a large number. Next, perform integer division using some large (probably prime) number n and take the remainder (see: Modulus). Y...