Sometimes in Meteor you need to use the same helper across templates. For example, if you have several views with admin controls, you might want a helper to help you control who sees those. It would be a pain to add that function to each template. Luckily, Meteor provides the ability to create a new global helper via UI.registerHelper.

UI.registerHelper takes two parameters: the name of the helper as a string, and the function to be called. So to add my admin helper I might do something like this.

	UI.registerHelper('admin', function() {
		return userIsAdmin();
	});

UI.registerHelper is an excellent tool to prevent repeating code and to centralize global template functionality.