Postman interface test | JS script blocking sleep and non blocking sleep

During the interface test , We often encounter that the previous interface has been called , Need to wait for a while , Then execute the scenario of the next interface .

programme 1： Blocking sleep waiting

function sleep(numberMillis) {
var now = new Date();
var exitTime = now.getTime() + numberMillis;
while (true) {
now = new Date();
if (now.getTime() > exitTime)
return;
}
}
console.log(' wait for 1 Second .' )
sleep(1000)

When executing the above code , Whole postman The interface will get stuck , The longer you wait , The longer it gets stuck , And I can't do anything else halfway ;

programme 2： Non blocking sleep wait

const sleep = time => {
    return new Promise(resolve => setTimeout(resolve, time)
    )
}



console.log(' wait for 10 Second , The current total is  0/60  second ')
sleep(60000)
console.log(' wait for 10 Second , The current total is  60/60  second ')

Although and scheme 1 There's no big difference , however postman The interface is not stuck , When the waiting time arrives , Then the subsequent operations will be performed automatically , Therefore, it is recommended to use the scheme 2.