JavaScript Execution

RTILA X provides two ways to execute JavaScript.

execute_script (Browser-Side)

Runs JavaScript in the browser page context. The script has access to the DOM and page elements.

Parameter	Description
script	JavaScript code to execute
output_variable	Variable to store the return value

Example:

script: return document.title;
output_variable: page_title

Example — Click an element:

script: document.querySelector('.submit-button').click();

Example — Get all links:

script: return Array.from(document.querySelectorAll('a')).map(a => a.href);
output_variable: all_links

run_script (Server-Side)

Runs a Deno script on the server side. The script has full access to the file system, network, and RTILA APIs.

Parameter	Description
script	Deno script code

⚠️ Warning: run_script runs with full system access. Use with caution.

Example:

script: |
  const data = await Deno.readTextFile("data.json");
  const parsed = JSON.parse(data);
  return parsed;

Variable Access in Scripts

In execute_script, you can access runtime variables via the variables object:

script: return variables.price * 1.2;

Script Transformations

In dataset transformations, the script transformation receives the current value as value:

code: return value.toUpperCase().replace("USD", "").trim();