Function: transform()
- Exported from:
rolldown/utils - Type: (
filename:string,sourceText:string,options?:TransformOptions|null,cache?:TsconfigCache|null) =>Promise<TransformResult> - Experimental
Transpile a JavaScript or TypeScript into a target ECMAScript version, asynchronously.
Note: This function can be slower than transformSync due to the overhead of spawning a thread.
Parameters
filename
string
The name of the file being transformed. If this is a relative path, consider setting the TransformOptions#cwd option.
sourceText
string
The source code to transform.
options?
TransformOptions | null
The transform options including tsconfig and inputMap. See TransformOptions for more information.
cache?
TsconfigCache | null
Optional tsconfig cache for reusing resolved tsconfig across multiple transforms. Used when options.tsconfig is true or a path. For a path, construct the cache with the same path.
Returns
Promise<TransformResult>
a promise that resolves to an object containing the transformed code, source maps, and any errors that occurred during parsing or transformation.