I have created custom template with knockoutjs in magento 2.1.7.

The file name mytemplate.phtml

<script type="text/x-magento-init">
    "*": {
        "Magento_Ui/js/core/app": {
            "components": {
                "someScope": {
                    "component": "Namespace_Module/js/view/listing"
                    "template": "Namespace_Module/listing"

This is the content of file Namespace_Module/web/js/template/listing.html

<a role="button" href="#" data-toggle="collapse" data-bind="click: myFunction"><span data-bind="i18n: 'click me!'"></span></a> 

This is the content of file Namespace_Module/web/js/view/listing.js

], function($, ko ,Component) {
    'use strict';
    var self = this;

    return Component.extend({
        initialize: function () {
         * retrieve data to form update
        myFunction: function () {
            console.log('is ok');
            return this;

when i load get error message is

Unable to process binding "click: function (){return myFunction }"

pls let me know, what's wrong in my code? Many thanks!

  • make sure, that last version of Namespace_Module/web/js/view/listing.js has been loaded by browser – Max Sep 29 '17 at 9:21
  • yes i checked it's last version. – xanka Sep 29 '17 at 10:07
  • place alert message instead of ` return this` and run upgrade, static-content:deploy commands. And try again. – Bojjaiah Sep 29 '17 at 11:06
  • @xanka what exactly you are looking for inside myFunction? Are you going to display any message or print any data?. – Bojjaiah Sep 29 '17 at 11:55
  • It not important, pls let me know what wrong in my code or any things make code run true. – xanka Oct 1 '17 at 3:58

Change button html following way:

<a role="button" href="#" data-toggle="collapse" data-bind="click: myFunction()"><span data-bind="i18n: 'click me!'"></span></a> 

Change your js function:

myFunction: function () {
    console.log('Click Me');

Make sure you deleted html template from pub/static/frontend/....

  • Thank @sohelrana, i was change like this but get the samle error message. Message: Unable to process binding "click: function (){return myFunction() }" Message: myFunction is not defined – xanka Sep 29 '17 at 8:02
  • Did you flash browser cache? It’s tested code, should work – Sohel Rana Sep 29 '17 at 9:23
  • i'm using mode is developer. – xanka Sep 29 '17 at 10:06
  • Whatever your mode browser don’t care. Browser cache js and html templates. So need hard refresh. – Sohel Rana Sep 29 '17 at 10:50
  • i was flush cache ah check file in pub folder, it's lastest version. – xanka Sep 29 '17 at 11:19

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