Hi,

You can use the "t-on-change" attribute to call a function when values change in the field in Odoo 16.

In xml you can give like,

<input type="file" t-on-change="functionToBeCalled"/>

and in JS you can write the function definition.

functionToBeCalled(ev) {
        //What action to perform.
}

Hope it works

Hi

odoo.define("module_name.value_group_by", function (require) {
"use strict";
var publicWidget = require('web.public.widget');
var registry = require("@web/core/registry")
var ajax = require('web.ajax');
var core = require('web.core');
var QWeb = core.qweb;
var Template = publicWidget.Widget.extend({
selector: '.value_group_by',
events : {
'change #group_select_value' : '_onChangeValue'
},
// This is for getting group value
_onChangeValue: function(){
let self = this
var search_value = self.$el.find("#group_select_value").val();

}
})
publicWidget.registry.value_group_by = Template;
return Template
})

Regards