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"ProfStef"

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Quentin Ducasse.

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-Hello, everyone.

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In this lesson, we are going to look
at the tool named ProfStef.

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Basically, to launch it,

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all you have to do is to write
"ProfStef go" in a Playground

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and just highlight it

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and do it.

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This opens the tool.
There is some presentation.

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Basically, this tool is there
to help you learn Pharo by yourself.

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What you can do is,
for each lesson,

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you can see here
that there are 29 lessons,

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you will have some explanation,

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then a "ProfStef next"
to access the next lesson.

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What we can do is highlight it,
right click it and do it

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to go to the next lesson.

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So, once again,
you have some explanations.

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These are explanations
on the "Do it" command.

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What we can do, for example,

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is select the "GTPlayground open",
right-click and do it.

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This opens a Playground.

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What we can do next
is do it to the next lesson

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with "ProfStef next".

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Do it.

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This is an explanation
of the "Print it" command.

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You can highlight, right-click
and print it this time

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so it shows a 3.

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We can do the same thing
with other expressions.

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I will let you try those by yourself.

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Let's go to the next lesson, do it.

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And these are some explanations
of the "Inspect it" command, so this one.

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Basically, if we highlight the "1/2",

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it opens the Inspector on a fraction,
so half.

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Basically, the flow of this tool
is to have some explanation.

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Try it yourself

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and then, inspect and browse
all the different commands Pharo offers.

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I would really encourage you
to look at this tool

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and try commands,

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maybe do the 29 lessons
if you are motivated.