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ScriptingIntermediate

Display JavaScript Output

Robomotion•Updated 6 months ago
Display JavaScript Output

Overview

Executes an inline JavaScript snippet and surfaces its return value in a dialog. Demonstrates the JavaScript Run node.

Display JavaScript Output

JavaScript is a web programming language used both on the client-side and server-side. Flows allow users to implement custom web automation behavior and handle web components through JavaScript code.

What Display JavaScript Output can do

  • Run Node script (Core.Process.StartProcess) — runs node with -e 'var variableName = "Hello World!"; console.log(variableName);', captures stdout into msg.javascript_output.
  • Trim output (Core.Programming.Function) — strips trailing CR/LF from msg.javascript_output.
  • Message Dialog (Core.Dialog.MessageBox, optType: info) titled Output from JavaScript: shows msg.javascript_output, then Core.Flow.Stop.

Behind the scenes

  • console.log writes to the Node.js process stdout, which Core.Process.StartProcess captures into msg.javascript_output — the dialog shows stdout, not a return value.
  • The inline snippet intentionally avoids any Node-specific APIs so it runs anywhere a node binary is on PATH.