Method delete

src/rmarkdown/preview.ts:158–161

(filePath: string)

    // dispose child and remove it from set
    public delete(filePath: string): boolean {
        this.store.get(filePath)?.dispose();
        return this.store.delete(filePath);
    }

    public get(filePath: string): RMarkdownPreview | undefined {
        return this.store.get(filePath);