<h3 id="heading-lexical-environment">Lexical environment</h3>
<p><img src="https://cdn.hashnode.com/res/hashnode/image/upload/v1678543589704/51f9881e-9773-46de-8cde-1f05e753f9ed.png" alt /></p>
<h3 id="heading-tdz">TDZ</h3>
<p><img src="https://cdn.hashnode.com/res/hashnode/image/upload/v1678543591931/0617b86d-e69c-4b10-8b45-e9ec2a230a7f.png" alt /></p>
<p><img src="https://cdn.hashnode.com/res/hashnode/image/upload/v1678543594002/cb0ef25f-d96f-452b-ac6d-023c8bf70654.png" alt /></p>
<h3 id="heading-curly-braces">Curly braces</h3>
<p><img src="https://cdn.hashnode.com/res/hashnode/image/upload/v1678543596015/746d6d5c-1543-4dd4-b05d-93bd00e79221.png" alt /></p>
<p><img src="https://cdn.hashnode.com/res/hashnode/image/upload/v1678543598426/29a818f3-d1a6-470c-a8bc-f06fb2f4949e.png" alt /></p>
<h3 id="heading-for-let"><strong>For let</strong></h3>
<p><img src="https://cdn.hashnode.com/res/hashnode/image/upload/v1678543600644/bbb2d020-b806-41f6-944e-2cdc5086b971.png" alt /></p>
<p><img src="https://cdn.hashnode.com/res/hashnode/image/upload/v1678543602800/e52eac76-187f-453b-be7c-4842e5e922a8.png" alt /></p>
<p><img src="https://cdn.hashnode.com/res/hashnode/image/upload/v1678543604581/3b414151-bc22-48ff-a4da-ff9a36eb89ea.png" alt /></p>


### Lexical environment

![](https://cdn.hashnode.com/res/hashnode/image/upload/v1678543589704/51f9881e-9773-46de-8cde-1f05e753f9ed.png)

### TDZ

![](https://cdn.hashnode.com/res/hashnode/image/upload/v1678543591931/0617b86d-e69c-4b10-8b45-e9ec2a230a7f.png)

![](https://cdn.hashnode.com/res/hashnode/image/upload/v1678543594002/cb0ef25f-d96f-452b-ac6d-023c8bf70654.png)

### Curly braces

![](https://cdn.hashnode.com/res/hashnode/image/upload/v1678543596015/746d6d5c-1543-4dd4-b05d-93bd00e79221.png)

![](https://cdn.hashnode.com/res/hashnode/image/upload/v1678543598426/29a818f3-d1a6-470c-a8bc-f06fb2f4949e.png)

### **For let**

![](https://cdn.hashnode.com/res/hashnode/image/upload/v1678543600644/bbb2d020-b806-41f6-944e-2cdc5086b971.png)

![](https://cdn.hashnode.com/res/hashnode/image/upload/v1678543602800/e52eac76-187f-453b-be7c-4842e5e922a8.png)

![](https://cdn.hashnode.com/res/hashnode/image/upload/v1678543604581/3b414151-bc22-48ff-a4da-ff9a36eb89ea.png)

Section 2: Block Scoping

Lexical environment

TDZ

Curly braces

For let