//// [privateInterfaceProperties.ts] interface i1 { name:string; } // should be an error class c1 implements i1 { private name:string; } // should be ok class c2 implements i1 { public name:string; } //// [privateInterfaceProperties.js] // should be an error var c1 = (function () { function c1() { } return c1; })(); // should be ok var c2 = (function () { function c2() { } return c2; })();