//// [incrementOperatorWithEnumType.ts] // ++ operator on enum type enum ENUM1 { A, B, "" }; // expression var ResultIsNumber1 = ++ENUM1["B"]; var ResultIsNumber2 = ENUM1.B++; // miss assignment operator ++ENUM1["B"]; ENUM1.B++; //// [incrementOperatorWithEnumType.js] // ++ operator on enum type var ENUM1; (function (ENUM1) { ENUM1[ENUM1["A"] = 0] = "A"; ENUM1[ENUM1["B"] = 1] = "B"; ENUM1[ENUM1[""] = 2] = ""; })(ENUM1 || (ENUM1 = {})); ; // expression var ResultIsNumber1 = ++ENUM1["B"]; var ResultIsNumber2 = ENUM1.B++; // miss assignment operator ++ENUM1["B"]; ENUM1.B++;