How i can pass helper data to Knockout JS to show it on my html file. Actually i am working on minicart and i want to show the product Qty as Dropdown and get value from Helperdata.

Any help would be appreciated!


1 Answer 1


For instance this is your Block function where you get Helper Data:

 public function getConfigData()
       return $this->helper->getHelperPrice();

Then in your .phtml file where you add script tag for JS, do this:

<script type="text/x-magento-init">
        "*": {
            "Vendor_Module/path/to/js_file": {
                "price": <?= /* @noEscape */ $block->getConfigData() ?>

and finally in your JS file (I've some extra code here):

   ], function (ko, Component, customerData) {
       'use strict';
       var subtotalAmount;
       var maxPrice = config.price; //here we set the helper value;
       var percentage;
       return Component.extend({
           displaySubtotal: ko.observable(true),
           maxprice: '$' + maxPrice.toFixed(2),
            * @override
           initialize: function () {
               this.cart = customerData.get('cart');
           getTotalCartItems: function () {
               return customerData.get('cart')().summary_count;
  • That is not passing a value to a KO template, that is declaring a global JS variable which is a terrible idea and would not work if there was more than one price required on a page.
    – Ben Crook
    Commented Nov 4, 2020 at 11:41
  • 1
    Then why don't you answer? Please let us know the right way to do it. Commented Nov 4, 2020 at 11:46
  • I already have here - magento.stackexchange.com/questions/103861/…
    – Ben Crook
    Commented Nov 4, 2020 at 11:58
  • Thanks, that added to my knowledge. Commented Nov 4, 2020 at 12:12
  • I've edited my answer, can you take a look now? @BenCrook Commented Nov 5, 2020 at 4:18

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