If you are looking to build some dynamic navigation in MODX Revolution you should check out Wayfinder. It’s a great tool to get what you want done. You can find some great links to documentation for wayfinder at http://sottwell.com/articles/wayfinder.html

The (almost) Complete Guide to Creating Menus in MODx Using Wayfinder has been really useful to me and I recommend it.

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If you need to get the value of a template variable (TV) in MODX Revolution from within a snippet for the current resource, you can use
$tvValue = $modx->resource->getTVValue('foo');

More MODX Revolution template variable documentation

I don’t think it’s a good idea to leave

console.log

statements in production code, it’s a good idea to prevent your site from breaking if you accidentally do. I include this condition in the first script that loads on the page of most of my projects

if (typeof console == "undefined") {
    window.console = {
        log: function () {}
    };
}

This JavaScript simply defines an empty function if the console is not available in the browser so stray log statements don’t break production for your valuable customers.

In a recent project I wanted to be able to dynamically set a production flag in JavaScript. Doing so would allow me to keep my production analytics free from dev and staging environment events. Because my dev and staging environments don’t run on a .com domain extension I was able to go with this simple script

    var de = document.location.hostname.split('.');
    de = de[de.length - 1];
    window.prod = (de == 'com') ? true : false;

Then when I need code to only respond when in production it’s as easy as

    if(window.prod) {
        // do awesomeness
    }

Splitting up the domain in JavaScript to set the production flag has been working well and I’m quite happy with it so far. If you have suggestions or want to share what you have done, please share in the comments below.