Last change
on this file since e29cc2e was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago |
initial commit
|
-
Property mode
set to
100644
|
File size:
673 bytes
|
Rev | Line | |
---|
[6a3a178] | 1 | var DESCRIPTORS = require('../internals/descriptors');
|
---|
| 2 | var defineProperty = require('../internals/object-define-property').f;
|
---|
| 3 |
|
---|
| 4 | var FunctionPrototype = Function.prototype;
|
---|
| 5 | var FunctionPrototypeToString = FunctionPrototype.toString;
|
---|
| 6 | var nameRE = /^\s*function ([^ (]*)/;
|
---|
| 7 | var NAME = 'name';
|
---|
| 8 |
|
---|
| 9 | // Function instances `.name` property
|
---|
| 10 | // https://tc39.es/ecma262/#sec-function-instances-name
|
---|
| 11 | if (DESCRIPTORS && !(NAME in FunctionPrototype)) {
|
---|
| 12 | defineProperty(FunctionPrototype, NAME, {
|
---|
| 13 | configurable: true,
|
---|
| 14 | get: function () {
|
---|
| 15 | try {
|
---|
| 16 | return FunctionPrototypeToString.call(this).match(nameRE)[1];
|
---|
| 17 | } catch (error) {
|
---|
| 18 | return '';
|
---|
| 19 | }
|
---|
| 20 | }
|
---|
| 21 | });
|
---|
| 22 | }
|
---|
Note:
See
TracBrowser
for help on using the repository browser.