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.
Welcome to episode 87 of Independent Misinterpretations - a Smalltalk and dynamic language oriented podcast with James Robertson and David Buck.
This week we have another recording from the STIC 2012 conference - Donald MacQueen talking about Instantiations' port of log4j to VA Smalltalk (log4s). This session was fairly heavy on live demo, so if you would rather watch the video, head on over to the STIC website.
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 87 of Independent Misinterpretations - a Smalltalk and dynamic language oriented podcast with James Robertson and David Buck.
This week we have another recording from the STIC 2012 conference - Donald MacQueen talking about Instantiations' port of log4j to VA Smalltalk (log4s). This session was fairly heavy on live demo, so if you would rather watch the video, head on over to the STIC website.
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 setting up a common local cache for all of your Pharo images. 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.
Mark Roos will present RTalk (a Smalltalk on the JVM) at the JVM Language Summit (July 30 to August 1, 2012). Mark Roos has two talks - one about RTalk and one about "invokedynamic" (a new bytecode for dynamic method invocation).
Today's Javascript 4 You looks at the "accordion" widget in the JQuery UI library. 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 moving classes and methods between ENVY Applications. 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:
Sometimes you need to move one or more classes from one Application to another (in ENVY). It's fairly easy to do, but there are a few things to keep in mind. To set up, we've created three applications. In the first one, we defined a class. In the second, we extended that class (with a new method). In the third, we defined another new class:
Before we can move a class between applications, we need to open the editions (both source and destination). In the example here, all three applications have been released; we'll create open editions first:
Next, we'll try to move the class in MyApplication1:
In the second image above, all the applications to which we could move the class are listed. Notice that MyApplication2 is not listed? It's open, but it extends the class in question. Given that setup, we cannot move the class into MyApplication2. We can move it into MyApplication3, because it's open, and has no extensions that get in the way.
Why isn't anything else listed? That's simple - we didn't create an open edition on anything else - thus, they are all ineligible to be recipients of the move. ENVY only shows us the possible destinations.
Now, select the class in MyApplication3, and try to move that. You'll see the following options:
Finally, try moving the extension in MyAplication2:
That can be moved to MyApplication1, where it would simply join the rest of the class. If we do that, the browser will look like this:
As with any changes made in an open edition, VA highlights them for us.
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.
There's a new version (6.2.1) of Smalltalk/X out - you can download it now. It's a pretty open system:
Smalltalk/X may be used even for the development of commercial Software and Applications without any licence fee (a few minor restrictions apply [*]). We appreciate your interest in Smalltalk and only ask in reply for you to share your joy and experience with others and help us marketing the great Smalltalk ideas ;-). In addition, it would be nice if you share example programs, demos, improvements, add-ons and national language translations with others by publishing those or send them to us for integration into the next release
You'll have to visit the website for those restrictions; the link is a Javascript popup.