<div dir="ltr"><div class="gmail_extra"><span style="font-family:arial,sans-serif;font-size:12.727272033691406px">>> | myBlock |</span><br style="font-family:arial,sans-serif;font-size:12.727272033691406px"><span style="font-family:arial,sans-serif;font-size:12.727272033691406px">>> myBlock := [ : arg1 : arg2 | ].</span><br style="font-family:arial,sans-serif;font-size:12.727272033691406px">
<span style="font-family:arial,sans-serif;font-size:12.727272033691406px">>> myBlock value: 'hello' value: 'there'</span><br></div><div class="gmail_extra"><span style="font-family:arial,sans-serif;font-size:12.727272033691406px"><br>
</span></div><div class="gmail_extra"><span style="font-family:arial,sans-serif;font-size:12.727272033691406px">nil</span></div><div class="gmail_extra"><span style="font-family:arial,sans-serif;font-size:12.727272033691406px"><br>
</span></div><div class="gmail_extra"><span style="font-family:arial,sans-serif;font-size:12.727272033691406px">Because the block isn't returning a value and the last line is calling the block.</span></div></div>