I'm in the process of porting an M1 module over to M2 and am trying to figure out the cleanest approach for conditionally mutating a component based on a system configuration value.

In Magento 1 I did the following:

I've read through Magento's "use custom JavaScript" but it doesn't seem to account for this use case.

The best way I can think of to do this is...

  • Add some dummy element to the document with a data property for the configuration value.
  • Mutate the widget and use jQuery to access the value from the document.

Feels pretty dirty and I'm wondering if there's a cleaner way?


1 Answer 1


You can pass the config value to your JS with something like this in your template file:

    ], function(disabler){
        disabler(<?php echo $block->getConfigValue ?>);

In the JS file:

function () {
    'use strict';

    return function disabler(configValue) {
        if (configValue === '1') {
            // do something

To get the config value in your block class,

public function getConfigValue()
    return $this->_scopeConfig->getValue(

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