関連ワード:  synchronous and asynchronous code    synchronous and asynchronous code in javascript    synchronous and asynchronous code execution    sync and async code    synchronous and asynchronous verilog code    synchronous and asynchronous programming    synchronous and asynchronous programming in c#    synchronous and asynchronous programming in python    synchronous and asynchronous programming in javascript    synchronous and asynchronous programming in node js