Custom commands

What are custom commands

New commands can be added to the REPL through an initialization file. Go to the about:config URL, find extensions.mozlab.mozrepl.initUrl, and set this value to a local URL (chrome:// or file://). The URL contents will be loaded in the REPL. Example:

First, set extensions.mozlab.mozrepl.initUrl to file://localhost/tmp/custom.js, then Create a /tmp/custom.js file with the following content:

    var startedAt = new Date();

    function report() {
        this.print('I was started at ' + startedAt);
    }

Every time you start a REPL, you’ll be able to read a repl.startedAt property and invoke a repl.report() method.

Library

Feel free to add commands here that can be used in one’s MozRepl init file.

• Command: Simple DOM Grabber – Grab a DOM element by clicking it with the mouse.
• Command: DOM Grabber #2 – Grab a DOM element by clicking it with the mouse. Also with item highlighting.
• Command: DOM Grabber #3 – Yet another variant, this time with the current element reported in the title bar and highlighted as mouse moves over it
• Command: getWindows() – Return a list of currently opened windows