use strict window formMixin function this defaultAttrs formSelector js

'use strict';

window.formMixin = function() {
    this.defaultAttrs({
        formSelector: ".js-form"
    })

    var sendUrl;
    var form;

    this.submitForm = function(e) {
        e.preventDefault();
        this.trigger("form-load-data");
        $.ajax(sendUrl, { 
            type: "GET", 
            dataType: "json", 
            data: form.serialize(), 
            context: this, 
            success: function(response) {
                if (response["success"]) {
                    this.trigger("form-load-data-done",response.data)
                } else {
                    this.trigger("form-load-data-error",response.errors)
                }
            } 
        });
    };

    this.curentFormValue = function(e, data) {
        return form.serialize();
    };

    this.after('initialize', function() {
        form = this.select("formSelector");
        sendUrl = form.attr('action');
        this.on('submit', this.submitForm);
    });
}