Dynamic field/attribute hiding from an object. (I named it fieldHider because we used it to hide mongodb results)

fieldHider.js

// this is used to work in Node.js
// if you want to use it inside the browser, replace the map function to ensure older browser support.
// DEPENDENCIES: underscore!
function omitFields (model, hidden_fields) {  
	var hider_code = 'return _.omit(model';
	hidden_fields.map(function (hider) {
		hider_code += ', \''+hider+'\'';
	});
	hider_code += ');';

	return new Function('_', 'model', hider_code)(_, model);
}

// use
omitFields({name: "Mr. Johnson", password: "PWHASH", secret: "mystery"}, ['password', 'secret']);
// => return: {name: "Mr. Johnson"}