Move Statements to Callers

Goal

Statements that vary by caller move out of the function so each caller chooses its own setup or follow-up.

Before the refactoring

function emit(line) {
  log.write(line);
  metrics.tick();
}

After the refactoring

function emit(line) { log.write(line); }
emit('startup');
metrics.tick();

Savings

The function's body becomes about its single responsibility; callers express their differences directly.

Note

If most callers want the moved statements, you've created duplication — the inverse of Move Statements into Function is only an improvement when callers genuinely differ.