What are scalar variables? - Scalar variables are what many programming languages refer to as simple variables. They hold a single data item, a number, a string, or a perl reference. Scalars are called scalars to differentiate them from constructs that can hold more than one item, like arrays.

CoolInterview.com - World's Largest Collection of Interview Questions & Answers, FAQs, queries, sample papers, exam papers, dumps, what, why, how, where, when questions

OneStopTesting.com - Testing EBooks, Tutorials, Articles, Jobs, Training Institutes etc.
OneStopGate.com - Gate EBooks, Tutorials, Articles, FAQs, Jobs, Training Institutes etc.
OneStopMBA.com - MBA EBooks, Tutorials, Articles, FAQs, Jobs, Training Institutes etc.
OneStopIAS.com - IAS EBooks, Tutorials, Articles, FAQs, Jobs, Training Institutes etc.
OneStopSAP.com - SAP EBooks, Tutorials, Articles, FAQs, Jobs, Training Institutes etc.
OneStopGRE.com - of GRE EBooks, Tutorials, Articles, FAQs, Jobs, Training Institutes etc.

Sponsored Links

Interview Questions

INTERVIEW QUESTIONS

PROGRAMMING LANGUAGES

PERL

DETAILS

Question: What are scalar variables?

Answer: Scalar variables are what many programming languages refer to as simple variables. They hold a single data item, a number, a string, or a perl reference. Scalars are called scalars to differentiate them from constructs that can hold more than one item, like arrays.

Category	Perl Interview Questions & Answers - Exam Mode / Learning Mode
Rating	(0.2) By 9301 users
Added on	9/14/2014
Views	68902
Rate it!

Question: What are scalar variables?

Answer:

Scalar variables are what many programming languages refer to as simple variables. They hold a single data item, a number, a string, or a perl reference. Scalars are called scalars to differentiate them from constructs that can hold more than one item, like arrays. Source: CoolInterview.com

scalar variables are one unti of data.the unit of data may be a number ,string and chunk of text. Source: CoolInterview.com

Answered by: raju | Date: 2/12/2010 |

Contact raju

If you have the better answer, then send it to us. We will display your answer after the approval.

Rules to Post Answers in CoolInterview.com:-

There should not be any Spelling Mistakes.

There should not be any Gramatical Errors.

Answers must not contain any bad words.

Answers should not be the repeat of same answer, already approved.

Answer should be complete in itself.

	Related Questions	View Answer
	What are the two different types of data perl handles?	View Answer
	How do you give functions private variables that retain their values between calls?	View Answer
	How many ways can we express string in Perl?	View Answer
	What value is returned by a lone return; statement?	View Answer
	What does new $cur->{LINK} do?	View Answer
	Why does Perl not have overloaded functions?l	View Answer
	Why does Perl not have overloaded functions?	View Answer
	Why is it hard to call this function: sub y ?	View Answer
	What does Perl do if you try to exploit the execve(2) race involving setuid scripts?	View Answer
	Why are not Perls patterns regular expressions?	View Answer
	What are scalar data and scalar variables?	View Answer
	How to turn on Perl warnings? Why is that important?	View Answer
	What happens when you return a reference to a private variable?	View Answer
	What is Perl one-liner?	View Answer
	How do I do fill_in_the_blank for each file in a directory?	View Answer
	How to open and read data files with Perl	View Answer
	Which of these is a difference between C++ and Perl?	View Answer
	How do I set environment variables in Perl programs?	View Answer
	Why we use Perl?	View Answer
	Given a file, count the word occurrence (case insensitive)	View Answer

Please Note: We keep on updating better answers to this site. In case you are looking for Jobs, Pls Click Here Vyoms.com - Best Freshers & Experienced Jobs Website.

View All Perl Interview Questions & Answers - Exam Mode / Learning Mode