Which methods would you use to read and modify package.json within a generator?

• A. this.fs.readJSON and this.fs.extendJSON
• B. this.fs.readJSON and this.fs.writeJSON
• C. this.fs.openJSON and this.fs.updateJSON
• D. this.fs.fetchJSON and this.fs.mergeJSON

Answer: (A)

Reading and updating a JSON file in a Yeoman generator is done by first loading the current content with a readJSON call, which parses package.json into a JavaScript object you can inspect and modify. To apply changes without overwriting what’s already there, use extendJSON to merge your updates into the existing file and then write it back. This combination lets you safely add dependencies, scripts, or other fields while preserving the rest of the file’s content and structure. The other options either aren’t part of Yeoman’s file system API or would replace the entire file rather than merging changes, which isn’t ideal when modifying package.json.