Handlebars helper: Contains

handlebars.contains.js

// Handlebars helper: Contains
// check if a value is contained in an array
Handlebars.registerHelper("contains", function( value, array, options ){
	// fallback...
	array = ( array instanceof Array ) ? array : [array];
	return (array.indexOf(value) > -1) ? options.fn( this ) : "";
});