// Set Ajax refresh context
var eventAjax = {
    currentCtx: ctx,
    csrAjaxRefresh: true
};
// Initiate Ajax Refresh on the list
AJAXRefreshView(eventAjax, SP.UI.DialogResult.OK);

Source: https://pradiprathod.wordpress.com/2015/05/04/how-to-refresh-list-view-in-sharepoint-2013-using-javascript/

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