To call a JavaScript function when a button is clicked in Odoo, you can use the onclick attribute of the button element and specify the name of the function you want to call. For example:

You can also use the qweb template engine to define the button in your XML file and bind the onclick event to a function in your JavaScript file. For example:

Then in your JavaScript file, you can define the myFunction function:

Copy code

odoo.define('my_module.my_javascript_file', function (require) {

    "use strict";

    var core = require('web.core');

    var _t = core._t;

    function myFunction() {

        console.log("Button clicked!");

    }

    return {

        myFunction: myFunction,

    };

});

You can also use the $.Event() function to trigger the button click event in your JavaScript code:

Copy code

$('button').trigger('click');

Keep in mind that you need to make sure that your JavaScript file is loaded on the page before you try to call any of the functions defined in it. You can do this by adding a dependency on your JavaScript file in the depends attribute of your module's manifest file