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Perl abs Function
Description
This function returns the absolute value of its argument. If pure interger value is passed then it will return it as it is, but if a string is passed then it will return zero. If VALUE is omitted then it uses $_
Syntax
Following is the simple syntax for this function −
abs VALUE abs
Return Value
This function returns the absolute value of its argument.
Example
Following is the example code showing its basic usage −
#!/usr/bin/perl $par1 = 10.25; $par2 = 20; $par3 = "ABC"; $abs1 = abs($par1); $abs2 = abs($par2); $abs3 = abs($par3); print "Abs value of par1 is $abs1\n" ; print "Abs value of par2 is $abs2\n" ; print "Abs value of par3 is $abs3\n" ;
When above code is executed, it produces the following result −
Abs value of par1 is 10.25 Abs value of par2 is 20 Abs value of par3 is 0
perl_function_references.htm