© Егор Летов.
Читая исходники тестов ECMA-262, случайно наткнулся на это
// Copyright 2009 the Sputnik authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/**
* @name: S13_A12_T1;
* @section: 13;
* @assertion: Function declarations in global or function scope are {DontDelete};
* @description: Checking if deleting a function that is declared in global scope fails;
*/
ALIVE="Letov is alive"
function __func(){
return ALIVE;
};
//////////////////////////////////////////////////////////////////////////////
//CHECK#1
if (delete __func) {
$ERROR('#1: delete __func returning false');
}
//
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
//CHECK#2
if (__func() !== ALIVE) {
$ERROR('#2: __func() === ALIVE. Actual: __func() ==='+__func());
}
//
//////////////////////////////////////////////////////////////////////////////
Автор: DeltaKilo