Today's Smalltalk 4 You looks at code recovery in VA Smalltalk. Short of a drive failure, it's pretty much impossible to lose code when using VA, and we'll see why today. If you have trouble viewing it here in the browser, you can also navigate directly to YouTube. To watch now, click on the image below:
If you have trouble viewing that directly, you can click here to download the video directly. If you need the video in a Windows Media format, then download that here.
You can also watch it on YouTube:
Today we'll look at how easy it is to recover lost code in VA - we'll create a small application and class, and then quit without saving - relying on ENVY to pick up the pieces for us. To start, here's the small class:
We quit without saving, brought a base image (i.e., not one we saved) up, and sure enough, our code is nowhere to be found:
From the Launcher, select browse the applications in ENVY, and scroll down to the one we just lost - it will show up as not having been released, but it's all there. Tight click and select Load.
That loads the application, but we still want the classes. Right click again, and select Manage Application:
From here, we can select one or more classes in the list, and load them by version - in this case, the most recent:
Now we can return to our workspace, and try creating an instance again:
That's one of the nicest things about ENVY - even if you don't version your code off, it does it for you. Short of a catastrophic loss of your drive, you can't really lose code.
Need more help? There's a screencast for other topics like this which you may want to watch. Questions? Try the "Chat with James" Google gadget over in the sidebar.
Welcome to episode 26 of "Thu'umcast" - a podcast where Michael Lucas-Smith, Scott Dirk, Austin Haley, Makahlua and I document our trials and tribulations in Elder Scrolls V: Skyrim
Chris and James go back into Dawnguard, this time on the Vampire side. Chris ran into an interesting framerate issue on the XBox, which limited his ability to play, but we did cover some of the Vampire quest line, and the perk tree.
If you liked our work on That Podcast, you'll probably like this. We intend to stay with the same idea - a gameplay podcast. If you don't want spoilers, don't listen - we are going to be talking about how we play the game, and what we ran across as we played.
Welcome to episode 26 of "Thu'umcast" - a podcast where Michael Lucas-Smith, Scott Dirk, Austin Haley, Makahlua and I document our trials and tribulations in Elder Scrolls V: Skyrim
Chris and James go back into Dawnguard, this time on the Vampire side. Chris ran into an interesting framerate issue on the XBox, which limited his ability to play, but we did cover some of the Vampire quest line, and the perk tree.
If you liked our work on That Podcast, you'll probably like this. We intend to stay with the same idea - a gameplay podcast. If you don't want spoilers, don't listen - we are going to be talking about how we play the game, and what we ran across as we played.
Welcome to episode 86 of Independent Misinterpretations - a Smalltalk and dynamic language oriented podcast with James Robertson and David Buck.
This week David and James talk about the new Smalltalk releases that have just recently come out: VisualWorks, ObjectStudio, and Gemstone. If you need more details on this, you can check the vendor websites:
You can subscribe to the podcast in iTunes (or any other podcatching software) using this feed directly or in iTunes with this one.
To listen now, you can either download the mp3 edition, or the AAC edition. The AAC edition comes with chapter markers. You can subscribe to either edition of the podcast directly in iTunes; just search for Smalltalk and look in the Podcast results. You can subscribe to the mp3 edition directly using this feed, or the AAC edition using this feed using any podcatching software. You can also download the podcast in ogg format.
If you like the music we use, please visit Josh Woodward's site. We use the song Troublemaker for our intro/outro music. I'm sure he'd appreciate your support!
If you have feedback, send it to jarober@gmail.com - or visit us on Facebook - you can subscribe in iTunes using this iTunes enabled feed.. If you enjoy the podcast, pass the word - we would love to have more people hear about Smalltalk!
Welcome to episode 86 of Independent Misinterpretations - a Smalltalk and dynamic language oriented podcast with James Robertson and David Buck.
This week David and James talk about the new Smalltalk releases that have just recently come out: VisualWorks, ObjectStudio, and Gemstone. If you need more details on this, you can check the vendor websites:
You can subscribe to the podcast in iTunes (or any other podcatching software) using this feed directly or in iTunes with this one.
To listen now, you can either download the mp3 edition, or the AAC edition. The AAC edition comes with chapter markers. You can subscribe to either edition of the podcast directly in iTunes; just search for Smalltalk and look in the Podcast results. You can subscribe to the mp3 edition directly using this feed, or the AAC edition using this feed using any podcatching software. You can also download the podcast in ogg format.
If you like the music we use, please visit Josh Woodward's site. We use the song Troublemaker for our intro/outro music. I'm sure he'd appreciate your support!
If you have feedback, send it to jarober@gmail.com - or visit us on Facebook - you can subscribe in iTunes using this iTunes enabled feed.. If you enjoy the podcast, pass the word - we would love to have more people hear about Smalltalk!
Today's Smalltalk 4 You looks at how easy it is to get a Pharo based HTTP server (Zinc) installed and running. If you have a Linux box handy, you can be browsing your server in less than a minute. If you have trouble viewing it here in the browser, you can also navigate directly to YouTube.
The command line to get this going is:
curl http://zn.stfx.eu/zn/pharo-server.sh | bash
Small caveat - you may have to install curl first, depending on how you set your Linux environment up.
To watch now, click on the image below:
If you have trouble viewing that directly, you can click here to download the video directly. If you need the video in a Windows Media format, then download that here.
Ludus is a game framework for Amber Smalltalk (the Smalltalk on top of JavaScript). Today I checked out the Sokoban game example which is written in it.
Today's Javascript 4 You looks at setting JQuery UI widgets to be draggable on the canvas. If you have trouble viewing it here in the browser, you can also navigate directly to YouTube.
Join the Facebook Group to discuss the tutorials. You can view the archives here.
To watch now, click on the image below:
If you have trouble viewing that directly, you can click here to download the video directly. If you need the video in a Windows Media format, then download that here.
Today's Smalltalk 4 You looks at the inspector in VA Smalltalk - a powerful tool for examining objects. If you have trouble viewing it here in the browser, you can also navigate directly to YouTube. To watch now, click on the image below:
If you have trouble viewing that directly, you can click here to download the video directly. If you need the video in a Windows Media format, then download that here.
You can also watch it on YouTube:
Today we'll look inspectors in VA Smalltalk. Specifically, the general inspector, and the inspector used for dictionaries. To start with, we'll inspect a couple of simple objects: an array and a dictionary:
Now, select the array, and inspect it. You should see what we have below: the indices of the array on the left (if this were a non-array, those would be instance variables), and the values held in those slots to the right:
Next, inspect the dictionary - it looks much the same, with the keys on the left, and their values on the right:
To see something a bit different for the dictionary inspector, let's evaluate something with a lot more keys: CwConstants.
Notice how groups of keys are on the top left (Alphabetically organized, in this case), and, if we select a group, we can see each individual key on the lower left. The values still appear on the right
Now, for dictionaries like this one, we can see a specific addition for the inspector on dictionaries. Right click on a key - notice the menu that pops up? It's different than the one we saw for arrays:
Try browsing references. For the one shown above, you'll see where that key is used in the system:
Need more help? There's a screencast for other topics like this which you may want to watch. Questions? Try the "Chat with James" Google gadget over in the sidebar.
We integrated 30 fixes (the rounded number is completely casual) and integrated some tools that users feedback showed as necessary, specially the inclusion of OmniBrowser as part of the core for 1.4. As a result of all this changes and fixes, the stability of this version is a lot better and we are really happy with it.
Welcome to episode 30 of "Thu'umcast" - a podcast where Michael Lucas-Smith, Scott Dirk, Austin Haley, Makahlua and I document our trials and tribulations in Elder Scrolls V: Skyrim
Today's episode covers the sad tale of "when mods attack". Michael's level 70 character is fatally broken due to a bad interaction between the Skyrim game engine and the mods that he installed. We talk about how that happened, and go fairly deep into the technical details.
If you liked our work on That Podcast, you'll probably like this. We intend to stay with the same idea - a gameplay podcast. If you don't want spoilers, don't listen - we are going to be talking about how we play the game, and what we ran across as we played.
Welcome to episode 30 of "Thu'umcast" - a podcast where Michael Lucas-Smith, Scott Dirk, Austin Haley, Makahlua and I document our trials and tribulations in Elder Scrolls V: Skyrim
Today's episode covers the sad tale of "when mods attack". Michael's level 70 character is fatally broken due to a bad interaction between the Skyrim game engine and the mods that he installed. We talk about how that happened, and go fairly deep into the technical details.
If you liked our work on That Podcast, you'll probably like this. We intend to stay with the same idea - a gameplay podcast. If you don't want spoilers, don't listen - we are going to be talking about how we play the game, and what we ran across as we played.
Today's Javascript 4 You looks at setting up JQ UI widgets to be user sortable (rearrangeable). If you have trouble viewing it here in the browser, you can also navigate directly to YouTube.
Join the Facebook Group to discuss the tutorials. You can view the archives here.
To watch now, click on the image below:
If you have trouble viewing that directly, you can click here to download the video directly. If you need the video in a Windows Media format, then download that here.
Today's Smalltalk 4 You goes deeper into the VA Smalltalk inspector. If you have trouble viewing it here in the browser, you can also navigate directly to YouTube. To watch now, click on the image below:
If you have trouble viewing that directly, you can click here to download the video directly. If you need the video in a Windows Media format, then download that here.
You can also watch it on YouTube:
Today we'll continue with inspectors in VA Smalltalk. One thing to bear in mind is that you are inspecting the live object - try inspecting the code below:
1 to: 100 by: 20.
You should see an inspector on the Interval object. The instance variables are on the left, with the values on the right. For self, we see a printable representation of the entire object:
Now, on the left, select by, and change the value to something else - like 11. Pop up the menu in the right pane, and select save:
See what happened? By changing the value of one of the attributes, we changed the object:
You can do that for any object in the system, but be careful - if you were to inspect something like CwConstants, which is used across the system, and make changes, you could damage the way things operate. With Smalltalk, you have a lot of power, but you need to be careful about how you wield it.
Need more help? There's a screencast for other topics like this which you may want to watch. Questions? Try the "Chat with James" Google gadget over in the sidebar.