Express.js View Helper

express_view_helper.js

var ViewProperty = function(type, formatter) {
	this.type = type;
	if(typeof(formatter) === 'undefined') {
		this.plain = true;
	} else {
		this.formatter = formatter;
	}
};

ViewProperty.prototype.set = function(new_value) {
	this.value = new_value;
}

ViewProperty.prototype.get = function() {
	if(this.plain === true) {
		return this.value;
	} else {
		return this.formatter(this.value);
	}
}
		
app.dynamicHelpers({
	pageTitle: function() {
		return new ViewProperty('pageTitle',
			function(value) {
				return [ value, 'Transistor' ].join(' | ');
			}
		); // Needs a formatter
	},
	
	bodyClass: function() {
		return new ViewProperty('bodyClass');
	}
});