setTimeout和setInterval的unref()和ref()用法

setTimeout和setInterval的unref()和ref()用法

1 var testFunction=function(){2     console.log("guoyansi");3 }4 var timer=setInterval(testFunction,1000);5 timer.unref();//取消setTimeout和setInterval函數的調用6 timer.ref();//恢復setTimeout和setInterval函數的調用