CSIS054: Perl ProgrammingQuestions for week 5
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| QUESTION | ANSWER (highlight to read) |
| What is another word for a list? | An array. |
| How do I create a list? | With parentheses, like this: @stuff = ("one", "two", "three"); |
| How do I access an item in a list? | With square brackets, like this: print $stuff[1]; |
| What is the sigil for a list variable? | Ampersand (@). |
| What sigil do I use if I'm accessing a single item in a list? | Dollar sign ($). |
| What do the following functions do: split, join | see perlfunc |
| What do the following functions do: push, pop | See perlfunc |
| What do the following functions do: sort, reverse | See perlfunc |
| What does it mean to take a slice of a list? | To extract a subset of the list. |
| How do I take a slice of a string? | substr($str,$offset,$len); |
| How do I get the length of a list? | length(@list); |
| How do I produce a list of consecutive numbers? |
@list = 1..10; |
Address of this page is http://hhh.gavilan.edu/phowell/csis054/05questions.html
Please contact Peter Howell at phowell@gavilan.edu for questions or comments.
Last updated January 10, 2010.