tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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ArrowFunction_restricted-properties.js (956B)

      1 // Copyright (C) 2015 Caitlin Potter. All rights reserved.
      2 // This code is governed by the BSD license found in the LICENSE file.
      3 
      4 /*---
      5 description: >
      6    Functions created using ArrowFunction syntactic form do not have
      7    own properties "caller" or "arguments", but inherit them from
      8    %FunctionPrototype%.
      9 es6id: 16.1
     10 ---*/
     11 
     12 var arrowFn = () => {};
     13 
     14 assert.sameValue(arrowFn.hasOwnProperty('caller'), false, 'Functions created using ArrowFunction syntactic form do not have own property "caller"');
     15 assert.sameValue(arrowFn.hasOwnProperty('arguments'), false, 'Functions created using ArrowFunction syntactic form do not have own property "arguments"');
     16 
     17 assert.throws(TypeError, function() {
     18  return arrowFn.caller;
     19 });
     20 
     21 assert.throws(TypeError, function() {
     22  arrowFn.caller = {};
     23 });
     24 
     25 assert.throws(TypeError, function() {
     26  return arrowFn.arguments;
     27 });
     28 
     29 assert.throws(TypeError, function() {
     30  arrowFn.arguments = {};
     31 });
     32 
     33 reportCompare(0, 0);