Loading ...(Português) Lógica de programação com o Scratch – Aula 6
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(Português) Lógica de programação com o Scratch – Aula 5
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(Português) Lógica de programação com Scratch – Aula 4
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(Português) Lógica de programação com Scratch – Aula 3
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(Português) Lógica de programação com Scratch – Aula 2
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(Português) Lógica de programação com Scratch – Aula 1
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(Português) Aulas de lógica de programação usando Scratch
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(Português) Introdução ao jQuery
O jQuery é uma biblioteca JavaScript poderosa que está quase se tornando quase “sinônimo” do próprio JavaScript.
A apresentação de slides a seguir é de uma palestra introdutória do jQuery, que destaca praticamente todos os seus recursos e que mostra algumas modificações na versão mais recente da biblioteca (1.7).
E para quem quiser se aprofundar no assunto, o último slide aponta para um livro gratuito de jQuery: jqfundamentals.com.
(Registro aqui o agradecimento ao Erko Bridee por compartilhar esse conteúdo)
Fixing Windows/Linux boot after an Ubuntu update (Wubi)
Let me guess it: you arrived here because you installed Ubuntu via Wubi in some Windows box and, after a Linux update, you can no longer boot neither Windows or Linux, right?
First, calm down. The Ubuntu update didn’t know that your MBR had nothing about your Ubuntu “instalation”, then it worked on fixing something but just messed everythig.
To fix this, boot up your computer using a live CD (like the Ubuntu one) and execute the following in a terminal:
sudo apt-get install lilo sudo lilo -M /dev/sda mbr
Voilá! Restart you PC without the Ubuntu disc and everything will work like a charm.
Tip: everytime your Ubuntu installation ask you to update, don’t worry to do so. Just do not forget to execute these commands BEFORE restart your system.
Deploying your Rails 3 app on Dreamhost
This is another quick post: to deploy your Rails 3 app on a shared hosting at Dreamhost, just use RVM to make sure your gems will have their place in the sun on the user’s directory (otherwise Passenger will throw an access denied to /root/.gems error) and then configure your Rails app for the new gems path. Here is the step-by-step:
1) Access your Dreamhost account via SSH.
2) Install RVM “as a user” (you won’t be able to try this as root). Here is the step-by-step).
3) Configure your app so Passenger will know where to find your gems, including these lines in config.ru at the beginning of the file:
ENV['GEM_HOME'] = '/path/to/your/gems' require 'rubygems' Gem.clear_paths
Where ‘/path/to/your/gems’ should be replaced by your GEM_HOME using RVM. Lets say you installed ruby 1.8.7 (using rvm install 1.8.7) and a gemset named mygemset, the path to your gems may look something like: /home/USER/.rvm/gems/ruby-1.8.7-p330@mygemset
Edit @ mar 6th, 2011: Yesterday, Dreamhost announced they already support Rails 3, and its current version at the time of this writing is 3.0.3