Checking to see if a Bootstrap tooltip is associated with a field?

Method I ended up using just in case it is useful to anyone else,

var field = $('.example');

if (field.data && field.data('tooltip')) {
    // tooltip not initalized
} else {
    // it is
}

I also don't see any documentation related. But you can check with a jQuery if the tooltip has the attribute data-original-title. This attribute is added by the plugin while initializing the element and is used for the tooltip text content.

if ($('.example').attr('data-original-title')) {
    console.log('Tooltip not initialized'); 
} else {
    console.log('Tooltip initialized');
    // Change the tooltip content
    $('.example').attr('data-original-title', 'My new title');
}

Using Bootstrap 3:

var field = $('.example');

if (field.data('bs.tooltip')) {
    // tooltip is initialized
} else {
    // tooltip is not initialized
}