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πŸ‘Ύ add code formatting #3312

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Rnbsov wants to merge 2 commits into javascript-tutorial:master from Rnbsov:patch-79
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4 changes: 2 additions & 2 deletions 1-js/09-classes/05-extend-natives/article.md
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Original file line number Diff line number Diff line change
@@ -1,7 +1,7 @@

# Extending built-in classes

Built-in classes like Array, Map and others are extendable also.
Built-in classes like `Array`, `Map` and others are extendable also.

For instance, here `PowerArray` inherits from the native `Array`:

Expand Down Expand Up @@ -32,7 +32,7 @@ When `arr.filter()` is called, it internally creates the new array of results us

Even more, we can customize that behavior.

We can add a special static getter `Symbol.species` to the class. If it exists, it should return the constructor that JavaScript will use internally to create new entities in `map`, `filter` and so on.
We can add a special static getter [`Symbol.species`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol/species) to the class. If it exists, it should return the constructor that JavaScript will use internally to create new entities in `map`, `filter` and so on.
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@bogdanbacosca bogdanbacosca Jan 24, 2023

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We can add a special static getter [`Symbol.species`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol/species) to the class. If it exists, it should return the constructor that JavaScript will use internally to create new entities in `map`, `filter` and so on.
We can add a special static getter [Symbol.species](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol/species) to the class. If it exists, it should return the constructor that JavaScript will use internally to create new entities in `map`, `filter` and so on.

I don't think you really need the code format for the link description.


If we'd like built-in methods like `map` or `filter` to return regular arrays, we can return `Array` in `Symbol.species`, like here:

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