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16 lines
929 B
Perl
16 lines
929 B
Perl
#Scalars are always prefixed with $,
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#arrays with an @, and
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#hashes with a %.
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If something is a variable, and it doesn't have a special character in front of it, it might be a filehandle.
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Special Character What it Denotes Example
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$ Scalar $number = 123.44; $string = 'aaaa';
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@ Array @numberArray =(1,2,3);
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@stringArray = ('elmt1', 'elmt2',3 );
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$<var>[ ] Array Element print $stringArray[2];
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$stringArray[4] = 'newstring';
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% Hash %hashName = ('key' => 'value', 'key2'=>'value2');
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$<var>{ } Hash Lookup print $hashName{'key'}; # prints 'value'
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$hashName{'key3'} = 'value3'; # sets 'key3' |