Function writeManifest

writeManifest(
projectRoot: string,
options?: WriteManifestOptions,
): ManifestResult
Write the application's module manifest.

Only when it changed. Metro watches the files it bundles, so rewriting an identical manifest on every start would ask it to rebuild for nothing, and in dev that is a reload the developer did not ask for.
Parameters
- projectRoot: string
  The absolute project root.
- options: WriteManifestOptions = {}
  The write options.
Returns ManifestResult
What was written.