/** * @fileoverview Rule to flag when deleting variables * @author Ilya Volodin */ "use strict"; //------------------------------------------------------------------------------ // Rule Definition //------------------------------------------------------------------------------ module.exports = function(context) { return { "UnaryExpression": function(node) { if (node.operator === "delete" && node.argument.type === "Identifier") { context.report(node, "Variables should not be deleted."); } } }; };