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Syntax behind sorted(key=lambda: …)
... before the evens, the evens themselves are not sorted. Why is this?? Lets read the docs:
Key Functions Starting with Python 2.4, both list.sort() and sorted() added a key parameter to specify a function to be called on
each list element prior to making comparisons.
We have to do a little bi...
What is Persistence Context?
...tudying JPA and came across many new terms like Entity, persistence. While reading, I could not understand the exact definition for Persistence Context .
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Extracting the last n characters from a ruby string
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+1... I think this way is easier to read than string.reverse[0..n].reverse, which gives me a second of "wait, why is he doing that?" (or would if I weren't reading it in the context of this question)
– Arkaaito
Feb 1 '10 a...
Why is access to the path denied?
...s an executable file that is in use.
Path is a directory.
Path specified a read-only file.
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Difference between private, public, and protected inheritance
...n, I'd like to describe member's accessors first in my own words. If you already know this, skip to the heading "next:".
There are three accessors that I'm aware of: public, protected and private.
Let:
class Base {
public:
int publicMember;
protected:
int protectedMember;...
Android: upgrading DB version and adding new table
I've already created sqlite tables for my app, but now I want to add a new table to the database.
5 Answers
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Command Prompt - How to add a set path only for that batch file executing?
...cal:
setlocal
set PATH=...
set OTHERTHING=...
@REM Rest of your script
Read the docs carefully for setlocal/endlocal , and have a look at the other references on that site - Functions is pretty interesting too and the syntax is tricky.
The Syntax page should get you started with the basics.
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What is Node.js? [closed]
...t for event loops with first class function objects and closures. People already know how to use it this way having used it in the browser to respond to user initiated events.
A lot of people already know JavaScript, even people who do not claim to be programmers. It is arguably the most popular pro...
Best Java obfuscator? [closed]
...mething. Everything is hackable. A smart developer using a smart IDE can already get far enough.
Well, you can find here a list. ProGuard is pretty good. I've used it myself, but only to "minify" Java code.
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Should operator
...lly the question, is there a "right" way to implement operator<< ?
Reading this I can see that something like:
8 ...