The [Amazon SDK for JavaScript V3 API Reference Guide](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/) describes in detail all the API operations for the Amazon SDK for JavaScript version 3 (V3). 

# Supplemental documentation
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The following table includes links to supplemental documentation that will help you use and understand the Amazon SDK for JavaScript (v3).


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| Name | Notes | 
| --- | --- | 
| [SDK Clients](https://github.com/aws/aws-sdk-js-v3/blob/main/supplemental-docs/CLIENTS.md) | Information about initializing an SDK client and common configurable constructor parameters. | 
| [Upgrading Notes (2.x to 3.x)](https://github.com/aws/aws-sdk-js-v3/blob/main/UPGRADING.md) | Information regarding upgrading from Amazon SDK for JavaScript (v2). | 
| [Using the Amazon SDK for JavaScript (v3) on Amazon Lambda Node.js runtimes](https://github.com/aws/aws-sdk-js-v3/blob/main/supplemental-docs/AWS_LAMBDA.md) | Best practices for working within Amazon Lambda using the Amazon SDK for JavaScript (v3). | 
| [Performance](https://github.com/aws/aws-sdk-js-v3/blob/main/supplemental-docs/performance/README.md) | Information on how the Amazon SDK team has optimized performance of the SDK and includes tips for configuring the SDK to run efficiently. | 
| [TypeScript](https://github.com/aws/aws-sdk-js-v3/blob/main/supplemental-docs/TYPESCRIPT.md) | TypeScript tips and FAQs related to the Amazon SDK for JavaScript (v3). | 
| [Error Handling](https://github.com/aws/aws-sdk-js-v3/blob/main/supplemental-docs/ERROR_HANDLING.md) | Tips for dealing with errors related to the Amazon SDK for JavaScript (v3). | 
| [Effective Practices](https://github.com/aws/aws-sdk-js-v3/blob/main/supplemental-docs/EFFECTIVE_PRACTICES.md) | General recommendations for using the Amazon SDK for JavaScript (v3). |