Re^2: Interview Prepration

[merlyn]

for & foreach are now an alias to each other

Uh, no. You might want to read what I wrote about Perl's "contractions", and my specific comments on "for" vs "foreach".

[cog]

I know what you mean, you are correct, but you can write for or foreach and you will get the same result (and you say that in that link), which was what I was trying to say :-)

It didn't even occured to me mentioning the two different types of for/foreach because I thought of the question in terms I answered it :-)

[Anonymous Monk]

Uh, yes. The words for & foreach are an alias to each other.

[merlyn]

Right. They're syntax aliases, but they're semantically entirely different things. Did you read what I quoted? It explains what I mean, and I don't want to keep retyping that.

[Tanktalus]

To quote:

They're definitely two different kinds of loops. However the text for and foreach may be used to introduce either one. The actual loop-style is determined by what follows.

Which, seems to me, answers the question:

What is the difference between for & foreach, exec & system

as "for & foreach are aliases - there is no difference. They both introduce either a for-style loop or a foreach-style loop, determined by what follows."

Methinks you're getting a bit bent out of shape over someone agreeing with you. Either that, or I'm completely missing your point.