tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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not-a-constructor.js (916B)

      1 // Copyright (C) 2021 Jamie Kyle.  All rights reserved.
      2 // This code is governed by the BSD license found in the LICENSE file.
      3 
      4 /*---
      5 esid: sec-ecmascript-standard-built-in-objects
      6 description: >
      7  Object.hasOwn does not implement [[Construct]], is not new-able
      8 info: |
      9  ECMAScript Function Objects
     10 
     11  Built-in function objects that are not identified as constructors do not
     12  implement the [[Construct]] internal method unless otherwise specified in
     13  the description of a particular function.
     14 
     15  sec-evaluatenew
     16 
     17  ...
     18  7. If IsConstructor(constructor) is false, throw a TypeError exception.
     19  ...
     20 includes: [isConstructor.js]
     21 author: Jamie Kyle
     22 features: [Reflect.construct, arrow-function, Object.hasOwn]
     23 ---*/
     24 
     25 assert.sameValue(
     26  isConstructor(Object.hasOwn),
     27  false,
     28  'isConstructor(Object.hasOwn) must return false'
     29 );
     30 
     31 assert.throws(TypeError, () => {
     32  new Object.hasOwn('');
     33 });
     34 
     35 reportCompare(0, 0);