nodejs的sleep实现
var mycb=function mycb(arg){
console.log(`in my cb!! arg:${arg}`);
return arg;
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}
async function timercall(cb, arg, inteval){
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let p =new Promi((resolve, reject)=>{
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tTimeout(()=>{
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焦成语//先调⽤cb
let ret =cb(arg);
//返回
resolve({
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arg,
ret
});
}, inteval);
});
return p;
}
//循环sleep 2S 的⽅法：
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var interval =2000;
for(var i =0; i < times; i++){
var p =await timercall(mycb, i, interval);
console.log(`${i}: call: cbname: ${p.callback.name}, arg: ${p.arg}, ret: ${p.ret}`);
==3){
console.log(`${i}: call end, i will break`);
break;
}
}
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loopedcall(6);
