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Why use def main()? [duplicate]
...a function will benefit me, then I refactor the code and do it. This also happens when I write bash scripts.
Even if you put code inside the main function, you are not required to write it exactly like that. A neat variation could be:
import sys
def main(argv):
# My code here
pass
if __nam...
A cron job for rails: best practices?
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I'm using the rake approach (as supported by heroku)
With a file called lib/tasks/cron.rake ..
task :cron => :environment do
puts "Pulling new requests..."
EdiListener.process_new_messages
puts "done."
end
To execute from the comma...
Android NDK C++ JNI (no implementation found for native…)
...
There is a cpp example under apps in ndk:
https://github.com/android/ndk-samples/blob/master/hello-gl2/app/src/main/cpp/gl_code.cpp
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Objective-C ARC: strong vs retain and weak vs assign
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After reading so many articles Stackoverflow posts and demo applications to check variable property attributes, I decided to put all the attributes information together:
atomic //default
nonatomic
strong=retain //default
weak
retain
assign //default
unsafe_un...
垂直布局，高度无法充满怎么解决 - App Inventor 2 中文网 - 清泛IT社区，为创新赋能！
...幕，所以它只能充满它的父组件的高度。没有设置的选项App Inventor 2 发表于 2025-04-06 21:29
你好，请把 Screen1 下面的组件树展开看看。
目测是因为这个 垂直布局 的父组件，高度没有充满整个屏幕，所 ...
我上传了截图，...
Error installing mysql2: Failed to build gem native extension
... --- Install the mysql2 Gem ---
You will now be able to use your Rails app with MySQL, if you are not sure how to create a Rails 3 app with MySQL read on...
--- Get a Rails 3 app going with MySQL ---
Open command prompt(not Git Bash) -> start/cmd
Navigate to your folder (c:\Sites)
Create ...
Flask-SQLalchemy update a row's information
...ask
from flask.ext.sqlalchemy import SQLAlchemy
from pprint import pprint
app = Flask(__name__)
app.config['SQLALCHEMY_DATABASE_URI'] = 'sqllite:////tmp/users.db'
db = SQLAlchemy(app)
class User(db.Model):
id = db.Column(db.Integer, primary_key=True)
name = db.Column(db.String(80), unique...
Where to place AutoMapper.CreateMaps?
I'm using AutoMapper in an ASP.NET MVC application. I was told that I should move the AutoMapper.CreateMap elsewhere as they have a lot of overhead. I'm not too sure how to design my application to put these calls in just 1 place.
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Laravel: Get base url
...to the URL generator
So you can do:
URL::to('/');
You can also use the application container:
$app->make('url')->to('/');
$app['url']->to('/');
App::make('url')->to('/');
Or inject the UrlGenerator:
<?php
namespace Vendor\Your\Class\Namespace;
use Illuminate\Routing\UrlGenera...
iPhone UITextField - Change placeholder text color
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its also worth wrapping this in a respondsToSelector call - as without it this code will crash on pre 6.0 deployment target ( unrecognized selector sent to instance)
– gheese
Mar 7 '13 at 18:49
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