Function findArgument

vscode-ng-language-service/server/src/cmdline_utils.ts:9–15

(argv: string[], argName: string)

 */

function findArgument(argv: string[], argName: string): string | undefined {
  const index = argv.indexOf(argName);
  if (index < 0 || index === argv.length - 1) {
    return;
  }
  return argv[index + 1];
}

function findArgumentWithDefault<T>(
  argv: string[],