> Portal Navigation:
> 
> - Append `.md` to any URL under `https://dev.wix.com/docs/` to get its markdown version.
> - Pages are either content pages (article or reference text) or menu pages (a list of links to child pages).
> - To get a menu page, truncate any URL to a parent path and append `.md` (e.g. `https://dev.wix.com/docs/sdk.md`, `https://dev.wix.com/docs/sdk/core-modules.md`).
> - Top-level index of all portals: https://dev.wix.com/docs/llms.txt
> - Full concatenated docs: https://dev.wix.com/docs/llms-full.txt

# [Develop Websites](https://dev.wix.com/docs/api/get-menu-content?url=https%3A%2F%2Fdev.wix.com%2Fdocs%2Fdevelop-websites&format=markdown.md)

## [Articles](https://dev.wix.com/docs/develop-websites/articles.md)


### [Databases](https://dev.wix.com/docs/develop-websites/articles/databases.md)


#### [Wix Data](https://dev.wix.com/docs/develop-websites/articles/databases/wix-data.md)


##### [User Input](https://dev.wix.com/docs/develop-websites/articles/databases/wix-data/user-input.md)


- [About Validating User Input with Code](https://dev.wix.com/docs/develop-websites/articles/databases/wix-data/user-input/about-validating-user-input-with-code.md)

- [Processing User Input Before it is Stored in a Collection with Data Hooks](https://dev.wix.com/docs/develop-websites/articles/databases/wix-data/user-input/processing-user-input-before-it-is-stored-in-a-collection-with-data-hooks.md)

- [Adding Success and Error Messages for Elements Without a Submit Option](https://dev.wix.com/docs/develop-websites/articles/databases/wix-data/user-input/adding-success-and-error-messages-for-elements-without-a-submit-option.md)