test262/test/language/expressions/concatenation/S9.8_A4_T2.js

// Copyright 2009 the Sputnik authors.  All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.

/*---
info: |
    Result of String conversion from string value is the input argument (no
    conversion)
es5id: 9.8_A4_T2
description: Some strings convert to String by implicit transformation
---*/

// CHECK#1
var x1 = "abc";
if (x1 + "" !== x1) {
  $ERROR('#1: "abc" + "" === "abc". Actual: ' + ("abc" + ""));
}

// CHECK#2
var x2 = "abc";
if (typeof x2 + "" !== typeof x2) { 
  $ERROR('#2: typeof "abc" + "" === "string". Actual: ' + (typeof "abc" + ""));
}