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What is use of ‘->’ symbol?

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In Perl, ‘->’ symbol is an infix dereference operator. if the right hand side is an array subscript, hash key or a subroutine, then the left hand side must be a reference.

@array = qw/ abcde/; # array

print "n",$array->[0]; # it is wrong

print "n",$array[0]; #it is correct , @array is an array
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