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closes #1309

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Ilya Kantor 2019-09-02 23:21:04 +03:00
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commit 15f8b887f1
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1-js/07-object-properties/01-property-descriptors/article.md
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@ -227,8 +227,6 @@ To be precise, non-configurability imposes several restrictions on `defineProper
3. Can't change `writable: false` to `true` (the other way round works).
4. Can't change `get/set` for an accessor property (but can assign them if absent).
Notable exception: a value of non-configurable, but writable property still can be changed.
Here we are making `user.name` a "forever sealed" constant:
```js run
@ -250,6 +248,14 @@ Object.defineProperty(user, "name", {writable: true}); // Error
*/!*
```
```smart header="Non-configurable doesn't mean \"non-writable\""
Notable exception: a value of non-configurable, but writable property can be changed.
The idea of `configurable: false` is to prevent changes to property flags and its deletion, not changes to its value.
```
## Object.defineProperties
There's a method [Object.defineProperties(obj, descriptors)](mdn:js/Object/defineProperties) that allows to define many properties at once.