Starting from ReSharper 2022.2, active development of productivity features for JavaScript, TypeScript, JSON, CSS, and Protobuf is suspended, and these features are disabled by default. To enable them, select the corresponding checkboxes on the Environment | Products & Features page of ReSharper options Alt+R, O: JavaScript and TypeScript, CSS Language, and Protobuf.
When JavaScript support is explicitly enabled on the Environment | Products & Features page of ReSharper options , ReSharper provides JavaScript support up to ECMAScript 2016, including experimental features such as async/await, exponentiation operator and rest/spread in object literals/destructuring. jQuery and JSX syntax are supported as well.
By default, code inspection and other ReSharper features analyze JavaScript code according to the ECMAScript 5 standard, which is supported universally. If you use more advanced JavaScript code in your project, you can change the target ECMAScript level on the Code Editing | JavaScript | Inspections page of ReSharper options .
Descriptions of ReSharper features for JavaScript are grouped in the following topics:
To improve performance, ReSharper also automatically detects and starts ignoring large web files that have no references and were probably added to the solution by mistake.
If any of such files are detected, you will see a notification where you can stop ignoring any of those files if you need them. You can also find all automatically ignored files on the Code Editing | Third-Party Code page of ReSharper options .
To stop auto-detection and ignoring large unused web files, clear the Search for web files that can affect performance and exclude them from indexing checkbox on the Code Editing | Third-Party Code page of ReSharper options .