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js4u

JS 4U 237: Partial Image Overlays

January 16, 2013 23:40:32.858

Javascript 4 U

Today's Javascript 4 You looks at embedding an image overlay into a streetmap. 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:

map

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posted by James Robertson

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smalltalk

Randy Coulman's New Digs

January 16, 2013 22:30:37.178

You can follow Randy's thoughts on Smalltalk, Ruby, and whatever else he's getting into over here.

posted by James Robertson

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st4u

ST 4U 332: Bags and Sets

January 16, 2013 8:20:20.783

Today's Smalltalk 4 You looks at two collection classes, Bag and Set. 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:

Collections.

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:


Two of the Collection classes that you might need to know more about are Set and bag. The best way to look at that is via a small example:


| collection c1 |
collection := #(1 1 2 3 4 5 6 6 6 7 8 0 9 9).
c1 := collection asBag.
c1 inspect

Inspecting that gives you this:

Bag

What a Bag does is tell you the count for each unique element in the collection. That can be useful if you don't care about the order, but are interested in the occurrences - like this:


c1 occurrencesOf: 9.

That should give you 2.

Now let's try a Set:


| collection c1 |
collection := #(1 1 2 3 4 5 6 6 6 7 8 0 9 9).
c1 := collection asSet.
c1 inspect

Inspect that, and you'll see:

Set

Sets give you just the unique elements - useful if you want to filter out duplicates.

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.

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posted by James Robertson

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smalltalk

RIP Andreas Raab

January 15, 2013 9:07:16.742

I just saw very, very sad news in the Squeak mailing list - Andreas Raab has died. I didn't know him well, but his name pops up all the time in Squeak, and - even after the split - in Pharo. Rest in Peace Andreas - you left us too soon.

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posted by James Robertson

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js4u

JS 4U 236: Image Overlays

January 15, 2013 8:45:13.904

Javascript 4 U

Today's Javascript 4 You looks at image overlays in maps. 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:

image overlay

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:

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posted by James Robertson

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ST 4U 331: Class ApplicationWindow and Newer VisualWorks

January 14, 2013 8:41:21.240

Today's Smalltalk 4 You looks at another recent change in VisualWorks - the deprecation of ApplicationWindow. 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:

ApplicationWindow

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:

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posted by James Robertson

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IM 110: Upgrading Smalltalk Applications (AAC)

January 14, 2013 1:37:32.587

Welcome to episode 110 of Independent Misinterpretations - a Smalltalk and dynamic language oriented podcast with James Robertson and David Buck.

This week Dave and I talked about upgrading from one version of Smalltalk to another - I've recently been involved in the upgrading of a large application from VisualWorks 7.6 to VisualWorks 7.9.1 - and one of the biggest lessons here is that it's simpler if you can keep up with the vendor's release cycles. Not always possible, of course.

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!

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posted by James Robertson

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podcast

IM 110: Upgrading Smalltalk Applications

January 14, 2013 1:35:50.651

Welcome to episode 110 of Independent Misinterpretations - a Smalltalk and dynamic language oriented podcast with James Robertson and David Buck.

This week Dave and I talked about upgrading from one version of Smalltalk to another - I've recently been involved in the upgrading of a large application from VisualWorks 7.6 to VisualWorks 7.9.1 - and one of the biggest lessons here is that it's simpler if you can keep up with the vendor's release cycles. Not always possible, of course.

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!

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[im110.mp3 ( Size: 15372431 )]

posted by James Robertson

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law

Modern Justice

January 12, 2013 14:19:21.427

So here's where we sit in the US now: Aaron Swartz commits suicide, driven at least in part due to the unrelenting federal prosecution for something the injured party didn't want to pursue. Meanwhile, Dick Gregory gets off on a weapons charge for which DC vigorously prosecutes people without connections. I think it's now fair to say that we live under the rule of connections, rather than the rule of law.

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posted by James Robertson

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smalltalk

Pharo Coding Sprint

January 12, 2013 11:02:46.032

The next one will be in Lille (France) on February 8.

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posted by James Robertson

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st4u

ST 4U 330: Subcanvas Changes in Newer VW

January 11, 2013 12:36:42.526

Today's Smalltalk 4 You looks at change in the way Subcanvases work in newer revs of VisualWorks, and something you may have to do if you rely on some of the older APIs. 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:

Subcanvas

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:

s

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posted by James Robertson

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js4u

JS 4U 235: Overlay Switching

January 10, 2013 9:11:16.449

Javascript 4 U

Today's Javascript 4 You looks at switching between overlays in a map using Javascript. 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:

overlays

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:

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posted by James Robertson

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smalltalk

Smalltalk Analogies

January 10, 2013 7:59:03.720

Dave Buck explains why working in Smalltalk is so different from everything else.

posted by James Robertson

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st4u

ST 4U 329: Binary Message Changes in VisualWorks

January 9, 2013 11:54:11.628

Today's Smalltalk 4 You looks at a recent VisualWorks change in binary messages that might impact your upgrade. 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:

Binary Messages

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:

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posted by James Robertson

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