tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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testOverwrittenArgumentsWithUndefined.js (585B)

      1 function f() {
      2    var a = arguments;
      3    eval("assertEq(arguments[0], 42)");
      4    eval("assertEq(arguments, a)");
      5    arguments = undefined;
      6    eval("assertEq(arguments, undefined)");
      7    arguments = a;
      8    eval("assertEq(arguments[0], 42)");
      9    eval("assertEq(arguments, a)");
     10 }
     11 f(42);
     12 
     13 function f(z) {
     14    var a = arguments;
     15    eval("assertEq(arguments[0], 42)");
     16    eval("assertEq(arguments, a)");
     17    arguments = undefined;
     18    eval("assertEq(arguments, undefined)");
     19    z = 17;
     20    eval("assertEq(a[0], 17)");
     21    a[0] = 'ponies';
     22    eval("assertEq(z, 'ponies')");
     23 }
     24 f(42);