The Execute JavaScript Action is available ONLY for Safari, Google Chrome, and, as of Ver 7.1, Custom HTML Prompt

• These are actually three separate Actions, one for each browser, and one for Custom HTML Prompt Action
• This action allows you to execute a specified JavaScript, either from a file or text entered in the Action itself, and return the results.
• If you need to access other Mac apps, see Execute JavaScript for Automation (JXA) Action

• ignore results.
• display results in a window.
• display results briefly.
• display results large.
• type results.
• paste results.
• save results to variable.
• save results to the system clipboard or a named clipboard.
• save results asynchronously — the action runs while the macro continues on.

If the results are to be saved to a variable or a clipboard then further text areas appear in the action allowing you to specify the variable or specific clipboard.

JavaScript can only GET Keyboard Maestro variables. They cannot be set:

snippet.javascript

var myData = document.kmvar.My_KM_Data

If your Keyboard Maestro Variable contains spaces, they must be replaced with underscores in the JavaScript, for example:

  Keyboard Maestro Variable Name:  My KM Data
  JavaScript Reference:            document.kmvar.My_KM_Data

If you need to set a Keyboard Maestro Variable from the Browser JavaScript, then use a JavaScript return to return the data to the Keyboard Maestro Action, which can be set to save the results as a Keyboard Maestro Variable.

If you need to set more than one Keyboard Maestro Variable, one approach is to return the data for each variable on a separate line (or with delimiters of your choice), and then parse in a following Keyboard Maestro Search Action using RegEx.

1. Return Data for Multiple Variables

• Execute JavaScript in Custom Prompt Question