promise all array example

const BPromise = require('bluebird');

let arrayData = [1,2,3,4];

var promise5 = function () {

return new BPromise(function(resolve, reject) {

console.log('pawan1');

setTimeout(resolve, 1000,2);

})};

BPromise.all(

arrayData.map(function(data,key){

console.log("kumar---");

return promise5();

})

).then((data)=> {

console.log("data",data);

}).catch((err)=> {

console.log(err);

});