Get SharePoint Site Groups using JSOM

This code snippet helps to retrieve the group ID and Title from the current Site Collection

function getsiteGroups() {
    var clientContext = SP.ClientContext.get_current();
    oGroups = clientContext.get_web().get_siteGroups();
    clientContext.load(oGroups);
    clientContext.executeQueryAsync(
        Function.createDelegate(this, function(){
    var groupsInfo = '';
    var groupsEnumerator = oGroups.getEnumerator();

    while (groupsEnumerator.moveNext()) {
        var oGroup= groupsEnumerator.get_current();
        groupsInfo += '\n' + 'Group ID: '+oGroup.get_id() + ', ' +'Title : '+ oGroup.get_title();    }
    console.log(groupsInfo.toString());
    }),
        Function.createDelegate(this, function(){console.log('failed');}));
}

function injectMethod(){
       getsiteGroups();
}
ExecuteOrDelayUntilScriptLoaded(injectMethod, "sp.js");

Code snippet works in Office 365 and SharePoint 2013 +