Function getDependency

packages/schematics/angular/utility/dependency.ts:104–123

(
  tree: Tree,
  name: string,
  packageJsonPath = '/package.json',
)

 * @returns An object containing the dependency's type and version, or null if not found.
 */
export function getDependency(
  tree: Tree,
  name: string,
  packageJsonPath = '/package.json',
): Dependency | null {
  const manifest = tree.readJson(packageJsonPath) as MinimalPackageManifest;

  for (const type of [DependencyType.Default, DependencyType.Dev, DependencyType.Peer]) {
    const section = manifest[type];
    if (section?.[name]) {
      return {
        type,
        name,
        version: section[name],
      };
    }
  }

  return null;
}

/**
 * Adds a package as a dependency to a `package.json`. By default the `package.json` located