# Code Blocks and DesignScript

The code block is a unique feature in Dynamo that dynamically links a visual programming environment with a text-based one. The code-block has access to all of the Dynamo nodes and can define an entire graph in one node. Read this chapter closely, as the code block is a fundamental building block of Dynamo.

![](https://1734247194-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FY5ZuHF3yuXFWp1C46ZSo%2Fuploads%2Fgit-blob-93f4f79db10a528c97934a57223878f1b5bedb30%2FCode%20Blocks-01.jpg?alt=media)


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