function createStudent(i){
return new Promise(function(resolve, reject){
setTimeout(function(){
//console.log(`creating student : ${i}`)
resolve({student_created:i})
})
})
}
var p= Promise.resolve();
for(let i = 1; i <= 3; ++i){
p = p.then(x=>{
console.log(`x: ${JSON.stringify(x)}`)
return createStudent(i);})
}
p = p.then(x=>{
console.log(`x: ${JSON.stringify(x)}`)
})
console.log("done")
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