Merge pull request #609 from jsonkao/patch-3

Update article.md
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Ilya Kantor 2018-11-09 10:24:46 +03:00 committed by GitHub
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@ -191,7 +191,7 @@ The non-configurable flag (`configurable:false`) is sometimes preset for built-i
A non-configurable property can not be deleted or altered with `defineProperty`.
For instance, `Math.PI` is both read-only, non-enumerable and non-configurable:
For instance, `Math.PI` is read-only, non-enumerable and non-configurable:
```js run
let descriptor = Object.getOwnPropertyDescriptor(Math, 'PI');