---
description: 🚧 施工中
---

# RHS reference

[JS](../..) ⟩ [concepts](../../concept) ⟩ [compiler](../../compile) ⟩ RHS reference

{% hint style="success" %}
get the <mark style="color:orange;">**value**</mark>**&#x20;**<mark style="color:yellow;">**of some variable**</mark> (if it exists).
{% endhint %}



<img src="https://2527454625-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-MfvEFZnSBhKT6fJmus0%2Fuploads%2FZoBFNLUHVAiHD2Pr9cKg%2Fvariable.svg?alt=media&#x26;token=e849cb3f-80ad-4e32-bd13-c1b0be9ffa55" alt="a variable" class="gitbook-drawing">

{% tabs %}
{% tab title="👥 相關" %}
* [lhs](lhs "mention") - find the [..](.. "mention") container <mark style="color:yellow;">**itself**</mark> (in the scope chain).
{% endtab %}

{% tab title="💈範例" %}
{% hint style="danger" %}

{% endhint %}

* replit：? 🚧

```javascript
🚧
```
{% endtab %}

{% tab title="📗 參考" %}
* [ ] [ydkjs-scope-and-closures-v.2](../../../master/ref/book/you-dont-know-js-series-v.2/ydkjs-scope-and-closures-v.2 "mention") ⟩ [Ch. 1: What's the Scope?](https://github.com/getify/You-Dont-Know-JS/blob/2nd-ed/scope-closures/ch1.md#chapter-1-whats-the-scope)
{% endtab %}

{% tab title="🚧" %}
* [ ] scope chain
{% endtab %}
{% endtabs %}
