I have data stored in Perl array. How do I convert them into JavaScript array using JSON?

Question

Here is a similar example of what I am trying to do:

@name = qw (Sam Tom John Mike Andrea);
@scores = qw (92 80 59 83 88);

I need to store these array as JavaScript so I can make useful graphs on the web page.

possible duplicate of How can I send a JSON response from a Perl CGI program? — Patrick Evans
– Patrick Evans, Commented Mar 19, 2014 at 18:40

friedo · Accepted Answer · 2014-03-19 18:53:52Z

2

Assuming you want to keep them as separate arrays, stick references to them in a hash first:

my %data = ( names => \@names, scores => \@scores );

Then use the JSON module to serialize the data structure to JSON, e.g.:

use strict;
use warnings;

use JSON;

my @names  = qw (Sam Tom John Mike Andrea);
my @scores = qw (92 80 59 83 88);

my %data = ( names => \@names, scores => \@scores );

my $json = encode_json \%data;

print $json

Output:

{"names":["Sam","Tom","John","Mike","Andrea"],"scores":["92","80","59","83","88"]}

answered Mar 19, 2014 at 18:53

friedo

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2 Comments

user3353628 Over a year ago

This makes sense but here is what I have.

friedo Over a year ago

Then I suggest asking a new question about what you are actually trying to do, and what you are having trouble with. If you just make up an irrelevant question, the answer probably won't help you.

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