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What is the hex method in Perl?

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Grokking Modern System Design Interview for Engineers & Managers

Ace your System Design Interview and take your career to the next level. Learn to handle the design of applications like Netflix, Quora, Facebook, Uber, and many more in a 45-min interview. Learn the RESHADED framework for architecting web-scale applications by determining requirements, constraints, and assumptions before diving into a step-by-step design process.

Overview

The hex method in Perl is used to interpret a string or expression as a hexadecimal string and returns the corresponding numeric value.

Syntax

hex expression

Parameter

  • expression: The string we want to interpret as hexadecimal and return its corresponding numeric value.

Return value

This method returns a numeric value corresponding to the string expression treated as a hexadecimal.

Example

# create strings
$string1 = "0x1";
$string2 = "0x12";
$string3 = "aF";
$string4 = "c2";
# print numeric equivalent
print hex $string1;
print "\n";
print hex $string2;
print "\n";
print hex $string3;
print "\n";
print hex $string4;
Get numeric values of hexadecimal strings

Explanation

  • Lines 2 to 5: We create strings.
  • Lines 8 to 14: We interpret the strings as hexadecimal, and their corresponding numeric values are obtained using the hex method. Then finally, the values are printed to the console.

RELATED TAGS

perl
casefolded

Grokking Modern System Design Interview for Engineers & Managers

Ace your System Design Interview and take your career to the next level. Learn to handle the design of applications like Netflix, Quora, Facebook, Uber, and many more in a 45-min interview. Learn the RESHADED framework for architecting web-scale applications by determining requirements, constraints, and assumptions before diving into a step-by-step design process.

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