Expert answer:Perl Data Types

Expert answer:There are 3 tasks in total,
please address each Topic 1: Perl
Data Types -250 words For this forum, create
an original post addressing the topic(s) below, prior to midnight ET on
Thursday. Continue to follow your classmates’ posts for the remainder of the
week and respond to two or more of your classmates prior to midnight ET on
Sunday. Your follow-up posts may add additional insights to a classmate’s
opinions or may challenge posted opinions. Use examples from the readings, or
from your own research to support your views as appropriate. Be sure to read
the follow-up posts to your own posts and reply to any questions or requests
for clarification. By the way, include the name of the person’s post you are
replying to and your source for further research or reference. Thanks!Task 2Please provide feedback in 250 words to the following;This week we are to discuss the three data types that are incorporated
into the Perl scripting languages. In most of languages that I have worked with
in the past, to include the two that we have all worked with thus far in this
course, Node and VBScript, there have been a large number of data types. From
integers, floating types, and decimals to deal with numbers, and Booleans to
deal with the binary-like on and off state of a true or false variable, to even
an entire object, there have always been many different types of data to
process and deal with. However, the Perl scripting language deals with things
in a different light. It actually only incorporates three separate data types.
These data types are Arrays, Scalars, and Hashes.Scalars are the data type that can store numeric or
string values within its variables. While the entire syntax of Perl is
absolutely different than anything I have dealt with before, the assignment of
these variables seems loosely related to how we assigned variables when working
with VBScript. For all variable assignments using a Scalar data type, the
integer name is prefaced with a dollar sign, “$”, possibly stemming from the
fact that the sign looks like an “S” for Scalar. For an integer assignment, you
simply continue the assignment as you would in VBScript, and then you end the
statement with a semicolon, “;”.For example, to make an integer value for a number of
cats, you would type:$cats=10;Floats and Strings work in a similar fashion, and the
system can tell which is which by how you assign the value.$catName=”Fido”;$catPieRemaining=3.14;An Array in Perl is basically the same as an array in any
other language, and it stores Scalars. When you wish to create an array or
refer to more than one data element within the collection, you use the
ampersand, “@”. If you are only referring to one of the elements, you use the
dollar sign, as you’re only referring to a singular Scalar.@dogs=(1,2,3);@dogNames=(“sherlock”, “holmes”);You also refer to elements in a Perl array starting from
the 0th point, as you would in any other language.The final data type is the Hash. A Hash is created using
the percent sign “%”. It is basically used to store scalars, as an array is. However,
it has a unique key/value pairing attribute affixed to it. You can assign a
scalar as the Key and then assign the scalar as the value.%hungerLevel = (Aaron => ‘Hungry’)In this example, Aaron is the key and Hungry is the
value, and you can search through the hash by Key. These are quite confusing
and I am still trying to figure them out.Task 3Please provide feedback in
250 words to the following;Perl has three different
data types that are used. The three different data types are scalar, lists and
hashes. A scalar is used to store a variables data. When the line of code is
written, a variable that is used may not be able to be recalled. This is why
you must write the variable as a scalar variable. The scalar variable will have
the $ before the variable’s name. This turns the variable into a scalar
variable.The next data type is
called a list. When you think of list you can easily think of a grocery list. A
grocery list can be used as a an example of how Perl defines a list. A list is
Perl is a group of values are in one line. The lists are also stored in the
order in which they are written. The third data type is
called hashes. A hash is very similar to a list and also a scalar. Hashes are
similar to lists because they can be written the same way. Hashes are also
similar to scalars because they are written with a prefix before the name. The
information in the hash can be recalled in any order. There a small differences
between all three of the data types. Scalar variable differs between the other
two because it only recalls the information that is in the single variable. The
list data type is different because it can recall all the data in that list and
only in a certain order. Hashes use a different prefix than scalars and also
can recall the information in a different order. Cozens, S. (n.d.). Working
With Simple Values . In Beginning Pearl (pp. 37-74).Cozens, S. (n.d.). Lists
and Hashs . In Beginning Pearl (pp. 75-112).

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