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<blockquote><i>
To find the size of an array you can you can do scalar(@a) which would return 3 originally and 4 after $a[4] was set to 4; </i>
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I think you meant $a[3] and not $a[4] :)<br>
I would also like to point at this node [id://395711], I think most Perl newcomers need to be introduces as soon as possible to those context issues,e.g. <br>
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<i>What would happen if you assign a list value to a scalar variable?</i>
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And for this particular question the answer would be, the scalar get the size value of the list.
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<i>Why?</i><br>
This is how Perl works, it's a ... rule.
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I am commenting on this mainly to point out that it's not obvious why would <b>scalar (@list)</b> return the list size, one would expect a function like <b>size @list</b>. So it would be reasonable to justify and explain those issues sooner rather than later.
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Most people like to learn why (the justification) things works in the way they do. Not just how (the rules).
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