I have following code:
<div class="form-group {{#if afFieldIsInvalid name='latitude' OR name='longitude'}}has-error{{/if}}">......</div>
How can I use AND/OR in if conditions of spacebars templates ?
Spacebars is an extension of Handlebars, which is designed to be a logic-less template language.
The solution is to register a helper. For the general case, see these similar questions:
To define helpers in Meteor, use Template.registerHelper