Solution :
Both datatypes are used in PERL. Both of them are very useful in their respect.
Hash vs Array :-
(i) The basic differnce is the order maintain by both, array always keeps the order of elements inserted but hash will not do the same.
(ii) If data is at large level, than hash is best option as compare to array and at small level, traversing in array is much quicker than hash.
(iii) The symbol difference is there, array always nominated by @ whereas hash is denoting by % symbol.
(iv) The brackets differnce is there, array uses [] parenthesis whereas hash uses {} curly braces.
(v) The elements can be access from array by using index ($array[1]) whereas in hash use keys ($hash{'keys'}) for the same.
(vi) Declaration of both :
my @array = (1,2,3,4,5,6);
foreach my $i(@array){
print $array[$i];
}
my %hash = (1,2,3,4,5,6);
foreach my $keys(keys %hash){
print $keys." => ".$hash{$keys}."\n";
}
Both datatypes are used in PERL. Both of them are very useful in their respect.
Hash vs Array :-
(i) The basic differnce is the order maintain by both, array always keeps the order of elements inserted but hash will not do the same.
(ii) If data is at large level, than hash is best option as compare to array and at small level, traversing in array is much quicker than hash.
(iii) The symbol difference is there, array always nominated by @ whereas hash is denoting by % symbol.
(iv) The brackets differnce is there, array uses [] parenthesis whereas hash uses {} curly braces.
(v) The elements can be access from array by using index ($array[1]) whereas in hash use keys ($hash{'keys'}) for the same.
(vi) Declaration of both :
my @array = (1,2,3,4,5,6);
foreach my $i(@array){
print $array[$i];
}
my %hash = (1,2,3,4,5,6);
foreach my $keys(keys %hash){
print $keys." => ".$hash{$keys}."\n";
}
You said all that but you forgot to mention the major difference between arrays and hashes.
ReplyDeleteAn array stores an ordered list of scalar values. Elements of the array are accessed using an integer which is the index of the element in the array.
A hash stores an unordered list of scalar values. Each value is stored against a string called the key and is accessed using that key.
The same thing is written in point V but in technical way.
Delete5th point is all about the thing, which you had asked.
ReplyDeleteI didn't ask anything.
ReplyDeleteYour fifth point is about syntax. My point is about fundamental differences.
though it's a good description... Thanks
ReplyDeleteIts very nice explanation.... very easy to understand.... Thanks
ReplyDelete