What is the best way to send a JavaScript array to a Perl script using AJAX?

Question

What is the best way to send a JavaScript array to a Perl script using AJAX?

Is it possible to convert a JavaScript array passed via AJAX into a Perl array?

Accessing in Perl:

@searchType = $cgi->param('searchType');
print @searchType[0];

Result:

employee,admin,users,accounts

It appears that the first value in the Perl array (@searchType[0]) contains all the elements of the JavaScript array as a single string.

javascript ajax arrays perl

Answer 1

Answer №1

While this question may be outdated, it could still be of interest to someone else browsing through similar topics.

To pass a JavaScript array to Perl via Ajax, one method is to convert the array into a JSON object using "JSON.stringify(jsArray);" and then decode it in the Perl script. Below is a simple example where the first item of the array is returned through an alert.

index.html:

<!DOCTYPE html>
<html>
    <head>
        <title>Testing ajax</title> 
        <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
        <script>

            $(document).ready(function() {

                $("#test").click(function(){
                    var jsArray = ["employee", "admin", "users", "accounts"];
                    var jsArrayJson = JSON.stringify(jsArray);
                    $.ajax({
                            type: 'POST',
                            url: '/cgi-bin/ajax/stackCGI/processJsArray.pl', //change the path
                            data: { 'searchType': jsArrayJson},
                            success: function(res) {alert(res);},
                            error: function() {alert("did not work");}
                    });
                })

            })

        </script>
    </head>
    <body>
       <button id="test" >Push</button>

    </body>
</html>

processJsArray.pl

#!/usr/bin/perl

use strict;
use warnings;

use CGI;
use JSON;

my $q = CGI->new;

my @myJsArray = @{decode_json($q->param('searchType'))}; #read the json object in as an array

print $q->header('text/plain;charset=UTF-8'); 
print "first item:"."\n";
print $myJsArray[0]."\n";

Answer 2

While this question may be outdated, it could still be of interest to someone else browsing through similar topics.

To pass a JavaScript array to Perl via Ajax, one method is to convert the array into a JSON object using "JSON.stringify(jsArray);" and then decode it in the Perl script. Below is a simple example where the first item of the array is returned through an alert.

index.html:

<!DOCTYPE html>
<html>
    <head>
        <title>Testing ajax</title> 
        <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
        <script>

            $(document).ready(function() {

                $("#test").click(function(){
                    var jsArray = ["employee", "admin", "users", "accounts"];
                    var jsArrayJson = JSON.stringify(jsArray);
                    $.ajax({
                            type: 'POST',
                            url: '/cgi-bin/ajax/stackCGI/processJsArray.pl', //change the path
                            data: { 'searchType': jsArrayJson},
                            success: function(res) {alert(res);},
                            error: function() {alert("did not work");}
                    });
                })

            })

        </script>
    </head>
    <body>
       <button id="test" >Push</button>

    </body>
</html>

processJsArray.pl

#!/usr/bin/perl

use strict;
use warnings;

use CGI;
use JSON;

my $q = CGI->new;

my @myJsArray = @{decode_json($q->param('searchType'))}; #read the json object in as an array

print $q->header('text/plain;charset=UTF-8'); 
print "first item:"."\n";
print $myJsArray[0]."\n";

Answer 3

Answer №2

Make sure to format it as

param1=value&param2=another-value

.

let filters = ["price", "category", "brand"];
let paramName = "filters";
for (let i = 0; i < filters.length; i++) {
    filters[i] = encodeURIComponent(paramName) + "=" + encodeURIComponent(filters[i]);
}
let paramsString = filters.join("&");

After that, you can include the paramsString in your URL or post request.

Answer 4

Make sure to format it as

param1=value&param2=another-value

.

let filters = ["price", "category", "brand"];
let paramName = "filters";
for (let i = 0; i < filters.length; i++) {
    filters[i] = encodeURIComponent(paramName) + "=" + encodeURIComponent(filters[i]);
}
let paramsString = filters.join("&");

After that, you can include the paramsString in your URL or post request.

What is the best way to send a JavaScript array to a Perl script using AJAX?

Answer №1

Answer №2

Similar questions

Swapping out ChildNode data for HTML elements

Unable to produce audio from files

Fixed navigation menu at the top of the screen

Having trouble developing a custom jQuery tool for textareas

Please enter a numerical value into the input field in a JavaScript form

Arrays of functions in C++

The asterisk path is not processed by the Node command

Each time the website refreshes, Object.entries() rearranges the orders

Vue3 TypeScript may potentially have an object that is 'undefined'

Concealing divs without values in ASP.NET MVC

Having trouble changing my array state in react?

Validating forms using jQuery before making an Ajax call to submit them

Angular js is a powerful framework that allows for the seamless transition of views, except for the home

Encountering an endless loop when utilizing cycle-idb with a text field for user input

Accessing form objects in Typescript with AngularJS

positioning a window.confirm dialog box in the center of the screen

Error message: Unexpected token "(" in the asynchronous aspect of Meteor

Transforming a vertical table into a horizontal layout

Tips for removing a row from a table

what strategies can be implemented to prioritize addressing validation errors in return forms