dev.writeToDisk#

• Type: boolean | ((filename: string) => boolean)
• Default: (file) => !file.includes('.hot-update.')

Used to control whether the build artifacts of the development environment are written to the disk.

Writing to Memory#

You can choose to save the build artifacts in the memory of the dev server, thereby reducing the overhead caused by file operations.

Simply set the dev.writeToDisk option to false:

export default {
  dev: {
    writeToDisk: false,
  },
};

Matching Specific Files#

You can also set dev.writeToDisk to a function to match only certain files. When the function returns false, the file will not be written; when it returns true, the file will be written to disk.

For example, Modern.js by default write files to disk while excluding hot-update temporary files:

export default {
  dev: {
    writeToDisk: (file) => !file.includes('.hot-update.'),
  },
};