LayoutTests/ietestcenter/Javascript/TestCases/11.4.1-5-2.js

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ES5Harness.registerTest( {
id: "11.4.1-5-2",

path: "TestCases/chapter11/11.4/11.4.1/11.4.1-5-2.js",

description: "delete operator returns false when deleting a direct reference to a function argument",

test: function testcase() {
  
  function foo(a,b) {
  
    // Now, deleting 'a' directly should fail
    // because 'a' is direct reference to a function argument;
    var d = delete a;
    return (d === false && a === 1);
  }
  return foo(1,2);  
 }
});