var fs = require('fs')
var addresses = fs.readFileSync("./streets.data").toString().split("\n").map(e=>e.trim())
Array.prototype.getRandom = function(){
return this[Math.randomRange(0, this.length)]
}
Array.prototype.apply = function(func){
var res = [];
for(var item of this){
res.push(func(item))
}
res
}
Array.prototype.last = function(){
if(this.length > 0)
return this[this.length-1]
else
return undefined
}
var names = ["Sophia", "Jackson",
"Emma", "Aiden",
"Olivia", "Lucas",
"Ava", "Liam",
"Mia", "Noah",
"Isabella", "Ethan",
"Riley", "Mason",
"Aria", "Caden",
"Zoe" ,"Oliver",
"Charlotte", "Elijah",
"Lily", "Grayson",
"Layla", "Jacob",
"Amelia", "Michael",
"Emily", "Benjamin",
"Madelyn", "Carter"]
var lastnames = [ "Smith" ,
"Jones" ,
"Williams",
"Taylor" ,
"Brown" ,
"Davies" ,
"Evans" ,
"Wilson" ,
"Thomas" ,
"Johnson" ,
"Roberts" ,
"Robinson" ,
"Thompson",
"Wright" ,
"Walker"]
var cities = [ "Kiev" ,
"Charkiv" ,
"Odessa" ,
"Dnipropetrovsk",
"Donetsk" ,
"Zaporizhia",
"Lviv" ,
"Kryvyi Rih",
"Mykolaiv" ,
"Kherson" ]
var position = ['director', 'inspector', 'manager', 'assistant']
var propertyTypes = ['house', 'office', 'flat', 'villa', 'appartment', 'garage']
var feedbacks = ["a", "b", "c"]
var paymentMethods = ['cash', 'visa', 'transaction']
var old_random = Math.random
Math.random = function(){
var n = old_random() * 10000000
n -= n % 1;
return parseInt(n, 10)
}
function repeat(times){
return {
func: (func)=>{
var res = []
for(var i = 0 ; i < times; i++)
res.push(func(i))
return res
}
}
}
Math.randomRange = function(a,b){
return Math.random() % (b-a) + a;
}
Math.randomLuck = function(percents){
return Math.randomRange(0,100) % 100 <= percents;
}
function generatePhone(){
return `(0${Math.randomRange(10,99)}) ${Math.randomRange(100, 999)}-${Math.randomRange(10, 99)}-${Math.randomRange(10, 100)}}`
}
function generatePostalCode(){
return (Math.randomRange(30, 60)).toString() + (Math.random()%1000).toString()
}
function generateInsert(table, array){
return `INSERT INTO ${table} VALUES(` + array.map(e=>"'"+e).join("',") + "')"
}
var ids = {}
function generateId(name, number){
if(name === "PRIVATEOWNER")
name = "OWNER"
if(!number){
if(ids[name] == undefined){
ids[name] = 0
} else {
ids[name]++
}
number = ids[name]
}
var num = number.toString()
return name[0] + ("0".repeat(4 - num.length)) + num
}
function generatePerson(){
// var sex = (Math.random() % 2 ? "F": "M")
var name, lastName;
var nameIndex = Math.random() % names.length
name = names[nameIndex]
lastName = lastnames[Math.random() % lastnames.length]
return {
sex: nameIndex % 2 ? "M": "F",
name,
lastName
}
}
function randomDate(start, end) {
return new Date(start.getTime() + ((Math.random() % 100) / 100) * (end.getTime() - start.getTime()));
}
function formatDate(date){
if(!date.getFullYear() < 2040)
return `${date.getMonth()}-${date.getDay()}-${date.getFullYear()}`
else
return "null"
}
function generateAddress(){
return [
generatePostalCode(),
cities.getRandom(),
addresses.getRandom()+".",
Math.randomRange(1,150)
].map(e=>e.toString()).join(", ")
}
var generatedPeopleId = 0
var generatedPeople = []
function generateBranch(conf){
// conf: {
// director: q,
// manager: q,
// inspector: q,
// assistant: q
// }
var directorCreated = false
var managerCreated = false
var localGeneratedPeople = []
var branchId = generateId('Branch')
function pushPerson(type){
localGeneratedPeople.push(Object.assign(generatePerson(), {position: type, id: generatedPeopleId++, branches: branchId}))
return localGeneratedPeople[localGeneratedPeople.length-1]
}
if(!conf){
for(var i = 0; i < Math.randomRange(10,25); i++){
var rnd = (Math.random() % 100) / 100
if(rnd < 0.1 && !directorCreated){
var director = pushPerson('director')
directorCreated = director.id
} else if(rnd < 0.4) {
pushPerson('inspector')
} else if(rnd < 0.6){
pushPerson('manager')
managerCreated = i
} else if(rnd < 1){
pushPerson('assistant')
}
}
} else {
for(var key of Object.keys(conf)){
for(var i = 0; i < conf[key]; i++){
if(key === "director"){
var director = pushPerson('director')
directorCreated = director.id
} else if(key === "manager"){
var manager = pushPerson('manager')
managerCreated = manager.id
} else{
pushPerson(key)
}
}
}
}
if(!managerCreated){
pushPerson('manager')
managerCreated = localGeneratedPeople.length - 1
}
if(!directorCreated){
pushPerson('director')
directorCreated = localGeneratedPeople.length - 1
}
for(var i = 0; i < localGeneratedPeople.length; i++){
var date = randomDate(new Date(1970, 0,0), new Date(1990, 0, 0))
localGeneratedPeople[i].dateOfBirth = formatDate(date)
localGeneratedPeople[i].salary = (((Math.random() % 5 + 5) * (5 - position.indexOf(localGeneratedPeople[i].position)) / 2)) * 1000
if(i != directorCreated && (localGeneratedPeople[i].position == "manager" || localGeneratedPeople[i].position == "inspector")){
localGeneratedPeople[i].supervisedBy = directorCreated
} else if(localGeneratedPeople[i].position == 'assistant'){
var avail = localGeneratedPeople.filter(person=> (/*person.position == 'manager' ||*/ person.position == 'inspector'))
localGeneratedPeople[i].supervisedBy = avail.getRandom().id
} else {
localGeneratedPeople[i].supervisedBy = null
}
}
localGeneratedPeople.map((p)=>{
p.supervisedBy = generateId("STAFF", p.supervisedBy);
generatedPeople.push(p)
return p
})
// for(var person of localGeneratedPeople){
// generatedPeople.push(person)
// }
return {
manager: generateId('Staff', managerCreated),
city: cities[Math.random() % cities.length],
address: addresses[Math.random() % addresses.length],
postalCode: generatePostalCode(),
id: branchId
}
}
var usedPrivateOwners = {}
var privateOwners = []
var privateOwnersCount = 0
function generatePrivateOwner(){
// insert into PrivateOwner values('O00001', 'Galina', 'Lennon', 'Odesa, Bunina, 4', '874250779516');
var owner = Object.assign(generatePerson(), {
id: privateOwnersCount++,
address: generateAddress(),
phone: generatePhone()
})
// usedPrivateOwners[p]
return owner
}
var clients = []
var clientsCount = 0
function generateClient(){
// insert into Client values('C00008', 'Petr', 'Rafsen', '179725839934', 'apartment', 9000);
clients.push( Object.assign(generatePerson(), {
id: clientsCount++,
address: generateAddress(),
phone: generatePhone(),
propertyType: propertyTypes.getRandom(),
maxRent: (Math.random() % 5 + 5) * 1000
}))
return clients.last()
}
var propertiesForRent = []
var propertiesForRentCount = 0
function generatePropertyForRent(ownerId, overseesStaffId, BranchId){
// insert into PropertyForRent values('P00004', 'Odesa', 'Bazarna, 56', '65000', 'house', 12, 18000, 'O00002', 'S00016', 'B00002');
propertiesForRent.push({
id: propertiesForRentCount++,
city: cities[Math.random() % cities.length],
address: addresses[Math.random() % addresses.length],
postalCode: generatePostalCode(),
propertyType: propertyTypes[Math.random() % propertyTypes.length],
rooms: Math.random() % 12 + 3,
rent: (Math.random() % 12 + 6) * 1000,
privateOwner: ownerId,
overseesBy: overseesStaffId,
branchNo: BranchId
})
return propertiesForRent.last()
}
var viewingsCount = 0
function generateViewing(clientNo, propertyNo, date){
// insert into Viewing values('C00003', 'P00001', '09-01-2016', 'Pretty good');
return {
client: clients.getRandom(),
property: propertiesForRent.getRandom().id,
date: randomDate(new Date(2014,0,0), new Date()),
feedback: feedbacks.getRandom()
}
}
var leasesCount = 0
var leases = []
function generateLease(propertyId, clientId){
// insert into Lease values('L00008', 'P00013', 'C00007', 23000, 'bank_order', 11500, true, '10-01-2016', null, 10);
var rentStart = randomDate(new Date(2014,0,0), new Date(2017,0,0))
var duration = Math.randomRange(1, 24)
var rentFinishTmpFinish = new Date(rentStart)
var rentFinish;
rentFinishTmpFinish.setFullYear(rentStart.getFullYear() + duration / 12);
rentFinishTmpFinish.setMonth(rentStart.getMonth() + duration % 12);
if(rentFinishTmpFinish > new Date()){
rentFinish = null;
} else {
rentFinish = rentFinishTmpFinish
}
var rent = Math.randomRange(5, 12) * 1000
leases.push( {
id: generateId("LEASE", leasesCount++),
propertyId,
clientId,
rent,
deposit: rent * 2,
paymentType: paymentMethods[Math.random() % paymentMethods.length],
rentStart: rentStart,
rentFinish: rentFinish,
duration: duration
})
return leases.last()
}
var branches = []
for(var i = 0 ; i < 4; i++)
branches.push(generateBranch())
branches.push(generateBranch({
inspector: 7,
assistant: 7,
director: 1,
manager: 3
}))
for (var i = 0; i < generatedPeople.length; i++) {
console.log(generateInsert("STAFF", [
generatedPeople[i].name,
generatedPeople[i].lastName,
generatedPeople[i].position,
generatedPeople[i].sex,
generatedPeople[i].dateOfBirth,
generatedPeople[i].salary,
generatedPeople[i].branches,
generatedPeople[i].supervisedBy || "null"
]))
}
for (var i = 0; i < branches.length; i++) {
console.log(generateInsert("BRANCH", [
branches[i].city,
branches[i].address,
branches[i].postalCode,
branches[i].manager
]))
}
var privateOwners = []
for(var i = 0 ; i < 20; i++)
privateOwners.push(generatePrivateOwner())
for (var i = 20; i < privateOwners.length; i++) {
console.log(generateInsert("PRIVATEOWNER", [
privateOwners[i].name,
privateOwners[i].lastName,
privateOwners[i].address,
generatePhone()
]))
}
repeat(20).func(generateClient).forEach(e=>{
console.log(generateInsert("CLIENT", [
e.address,
e.phone,
e.propertyType,
e.maxRent
]))
})
repeat(20).func(()=>{
var branch = branches.getRandom().id
var overseesBy = generatedPeople.filter(person=>person.branches==branch && ["inspector", "assistant"].indexOf(person.position) != -1)
.getRandom().id
var ownerId = privateOwners.getRandom().id
return generatePropertyForRent(generateId("PRIVATEOWNER", ownerId), generateId("STAFF",overseesBy), branch)
}).map(e=>generateInsert("PROPERTYFORRENT",[
e.city,
addresses.getRandom(),
e.postalCode,
e.propertyType,
e.rooms,
e.rent,
e.privateOwner,
e.overseesBy,
e.branchNo
])).apply(console.log)
propertiesForRent.map(property=>{
var lease = generateLease(property.id, property.privateOwner)
return generateInsert("LEASE", [
lease.id,
generateId("PROPERTYFORRENT",lease.propertyId),
lease.clientId,
lease.rent,
lease.deposit,
lease.paymentType,
formatDate(new Date(lease.rentStart)),
lease.rentFinish ? formatDate(new Date(lease.rentFinish)): "null",
lease.duration
])
}).apply(console.log)
repeat(30).func(generateViewing).map((viewing)=>{
return generateInsert("VIEWING", [
generateId("CLIENTS", viewing.client.id),
generateId("PROPERTYFORRENT", viewing.property),
formatDate(viewing.date),
viewing.feedback
])
}).apply(console.log)
// (lease.rentFinish != null ? formatDate(new Date(lease.rentFinish)) : "null"),
var fs = require('fs')
var addresses = fs.readFileSync("./streets.data").toString().split("\n").map(e=>e.trim())
Array.prototype.getRandom = function(){
return this[Math.randomRange(0, this.length)]
}
Array.prototype.apply = function(func){
var res = [];
for(var item of this){
res.push(func(item))
}
res
}
Array.prototype.last = function(){
if(this.length > 0)
return this[this.length-1]
else
return undefined
}
var names = ["Sophia", "Jackson",
"Emma", "Aiden",
"Olivia", "Lucas",
"Ava", "Liam",
"Mia", "Noah",
"Isabella", "Ethan",
"Riley", "Mason",
"Aria", "Caden",
"Zoe" ,"Oliver",
"Charlotte", "Elijah",
"Lily", "Grayson",
"Layla", "Jacob",
"Amelia", "Michael",
"Emily", "Benjamin",
"Madelyn", "Carter"]
var lastnames = [ "Smith" ,
"Jones" ,
"Williams",
"Taylor" ,
"Brown" ,
"Davies" ,
"Evans" ,
"Wilson" ,
"Thomas" ,
"Johnson" ,
"Roberts" ,
"Robinson" ,
"Thompson",
"Wright" ,
"Walker"]
var cities = [ "Kiev" ,
"Charkiv" ,
"Odessa" ,
"Dnipropetrovsk",
"Donetsk" ,
"Zaporizhia",
"Lviv" ,
"Kryvyi Rih",
"Mykolaiv" ,
"Kherson" ]
var position = ['director', 'inspector', 'manager', 'assistant']
var propertyTypes = ['house', 'office', 'flat', 'villa', 'appartment', 'garage']
var feedbacks = ["a", "b", "c"]
var paymentMethods = ['cash', 'visa', 'transaction']
var old_random = Math.random
Math.random = function(){
var n = old_random() * 10000000
n -= n % 1;
return parseInt(n, 10)
}
function repeat(times){
return {
func: (func)=>{
var res = []
for(var i = 0 ; i < times; i++)
res.push(func(i))
return res
}
}
}
Math.randomRange = function(a,b){
return Math.random() % (b-a) + a;
}
Math.randomLuck = function(percents){
return Math.randomRange(0,100) % 100 <= percents;
}
function generatePhone(){
return `(0${Math.randomRange(10,99)}) ${Math.randomRange(100, 999)}-${Math.randomRange(10, 99)}-${Math.randomRange(10, 100)}}`
}
function generatePostalCode(){
return (Math.randomRange(30, 60)).toString() + (Math.random()%1000).toString()
}
function generateInsert(table, array){
return `INSERT INTO ${table} VALUES(` + array.map(e=>"'"+e).join("',") + "')"
}
var ids = {}
function generateId(name, number){
if(name === "PRIVATEOWNER")
name = "OWNER"
if(!number){
if(ids[name] == undefined){
ids[name] = 0
} else {
ids[name]++
}
number = ids[name]
}
var num = number.toString()
return name[0] + ("0".repeat(4 - num.length)) + num
}
function generatePerson(){
// var sex = (Math.random() % 2 ? "F": "M")
var name, lastName;
var nameIndex = Math.random() % names.length
name = names[nameIndex]
lastName = lastnames[Math.random() % lastnames.length]
return {
sex: nameIndex % 2 ? "M": "F",
name,
lastName
}
}
function randomDate(start, end) {
return new Date(start.getTime() + ((Math.random() % 100) / 100) * (end.getTime() - start.getTime()));
}
function formatDate(date){
if(!date.getFullYear() < 2040)
return `${date.getMonth()}-${date.getDay()}-${date.getFullYear()}`
else
return "null"
}
function generateAddress(){
return [
generatePostalCode(),
cities.getRandom(),
addresses.getRandom()+".",
Math.randomRange(1,150)
].map(e=>e.toString()).join(", ")
}
var generatedPeopleId = 0
var generatedPeople = []
function generateBranch(conf){
// conf: {
// director: q,
// manager: q,
// inspector: q,
// assistant: q
// }
var directorCreated = false
var managerCreated = false
var localGeneratedPeople = []
var branchId = generateId('Branch')
function pushPerson(type){
localGeneratedPeople.push(Object.assign(generatePerson(), {position: type, id: generatedPeopleId++, branches: branchId}))
return localGeneratedPeople[localGeneratedPeople.length-1]
}
if(!conf){
for(var i = 0; i < Math.randomRange(10,25); i++){
var rnd = (Math.random() % 100) / 100
if(rnd < 0.1 && !directorCreated){
var director = pushPerson('director')
directorCreated = director.id
} else if(rnd < 0.4) {
pushPerson('inspector')
} else if(rnd < 0.6){
pushPerson('manager')
managerCreated = i
} else if(rnd < 1){
pushPerson('assistant')
}
}
} else {
for(var key of Object.keys(conf)){
for(var i = 0; i < conf[key]; i++){
if(key === "director"){
var director = pushPerson('director')
directorCreated = director.id
} else if(key === "manager"){
var manager = pushPerson('manager')
managerCreated = manager.id
} else{
pushPerson(key)
}
}
}
}
if(!managerCreated){
pushPerson('manager')
managerCreated = localGeneratedPeople.length - 1
}
if(!directorCreated){
pushPerson('director')
directorCreated = localGeneratedPeople.length - 1
}
for(var i = 0; i < localGeneratedPeople.length; i++){
var date = randomDate(new Date(1970, 0,0), new Date(1990, 0, 0))
localGeneratedPeople[i].dateOfBirth = formatDate(date)
localGeneratedPeople[i].salary = (((Math.random() % 5 + 5) * (5 - position.indexOf(localGeneratedPeople[i].position)) / 2)) * 1000
if(i != directorCreated && (localGeneratedPeople[i].position == "manager" || localGeneratedPeople[i].position == "inspector")){
localGeneratedPeople[i].supervisedBy = directorCreated
} else if(localGeneratedPeople[i].position == 'assistant'){
var avail = localGeneratedPeople.filter(person=> (/*person.position == 'manager' ||*/ person.position == 'inspector'))
localGeneratedPeople[i].supervisedBy = avail.getRandom().id
} else {
localGeneratedPeople[i].supervisedBy = null
}
}
localGeneratedPeople.map((p)=>{
p.supervisedBy = generateId("STAFF", p.supervisedBy);
generatedPeople.push(p)
return p
})
// for(var person of localGeneratedPeople){
// generatedPeople.push(person)
// }
return {
manager: generateId('Staff', managerCreated),
city: cities[Math.random() % cities.length],
address: addresses[Math.random() % addresses.length],
postalCode: generatePostalCode(),
id: branchId
}
}
var usedPrivateOwners = {}
var privateOwners = []
var privateOwnersCount = 0
function generatePrivateOwner(){
// insert into PrivateOwner values('O00001', 'Galina', 'Lennon', 'Odesa, Bunina, 4', '874250779516');
var owner = Object.assign(generatePerson(), {
id: privateOwnersCount++,
address: generateAddress(),
phone: generatePhone()
})
// usedPrivateOwners[p]
return owner
}
var clients = []
var clientsCount = 0
function generateClient(){
// insert into Client values('C00008', 'Petr', 'Rafsen', '179725839934', 'apartment', 9000);
clients.push( Object.assign(generatePerson(), {
id: clientsCount++,
address: generateAddress(),
phone: generatePhone(),
propertyType: propertyTypes.getRandom(),
maxRent: (Math.random() % 5 + 5) * 1000
}))
return clients.last()
}
var propertiesForRent = []
var propertiesForRentCount = 0
function generatePropertyForRent(ownerId, overseesStaffId, BranchId){
// insert into PropertyForRent values('P00004', 'Odesa', 'Bazarna, 56', '65000', 'house', 12, 18000, 'O00002', 'S00016', 'B00002');
propertiesForRent.push({
id: propertiesForRentCount++,
city: cities[Math.random() % cities.length],
address: addresses[Math.random() % addresses.length],
postalCode: generatePostalCode(),
propertyType: propertyTypes[Math.random() % propertyTypes.length],
rooms: Math.random() % 12 + 3,
rent: (Math.random() % 12 + 6) * 1000,
privateOwner: ownerId,
overseesBy: overseesStaffId,
branchNo: BranchId
})
return propertiesForRent.last()
}
var viewingsCount = 0
function generateViewing(clientNo, propertyNo, date){
// insert into Viewing values('C00003', 'P00001', '09-01-2016', 'Pretty good');
return {
client: clients.getRandom(),
property: propertiesForRent.getRandom().id,
date: randomDate(new Date(2014,0,0), new Date()),
feedback: feedbacks.getRandom()
}
}
var leasesCount = 0
var leases = []
function generateLease(propertyId, clientId){
// insert into Lease values('L00008', 'P00013', 'C00007', 23000, 'bank_order', 11500, true, '10-01-2016', null, 10);
var rentStart = randomDate(new Date(2014,0,0), new Date(2017,0,0))
var duration = Math.randomRange(1, 24)
var rentFinishTmpFinish = new Date(rentStart)
var rentFinish;
rentFinishTmpFinish.setFullYear(rentStart.getFullYear() + duration / 12);
rentFinishTmpFinish.setMonth(rentStart.getMonth() + duration % 12);
if(rentFinishTmpFinish > new Date()){
rentFinish = null;
} else {
rentFinish = rentFinishTmpFinish
}
var rent = Math.randomRange(5, 12) * 1000
leases.push( {
id: generateId("LEASE", leasesCount++),
propertyId,
clientId,
rent,
deposit: rent * 2,
paymentType: paymentMethods[Math.random() % paymentMethods.length],
rentStart: rentStart,
rentFinish: rentFinish,
duration: duration
})
return leases.last()
}
var branches = []
for(var i = 0 ; i < 4; i++)
branches.push(generateBranch())
branches.push(generateBranch({
inspector: 7,
assistant: 7,
director: 1,
manager: 3
}))
for (var i = 0; i < generatedPeople.length; i++) {
console.log(generateInsert("STAFF", [
generatedPeople[i].name,
generatedPeople[i].lastName,
generatedPeople[i].position,
generatedPeople[i].sex,
generatedPeople[i].dateOfBirth,
generatedPeople[i].salary,
generatedPeople[i].branches,
generatedPeople[i].supervisedBy || "null"
]))
}
for (var i = 0; i < branches.length; i++) {
console.log(generateInsert("BRANCH", [
branches[i].city,
branches[i].address,
branches[i].postalCode,
branches[i].manager
]))
}
var privateOwners = []
for(var i = 0 ; i < 20; i++)
privateOwners.push(generatePrivateOwner())
for (var i = 20; i < privateOwners.length; i++) {
console.log(generateInsert("PRIVATEOWNER", [
privateOwners[i].name,
privateOwners[i].lastName,
privateOwners[i].address,
generatePhone()
]))
}
repeat(20).func(generateClient).forEach(e=>{
console.log(generateInsert("CLIENT", [
e.address,
e.phone,
e.propertyType,
e.maxRent
]))
})
repeat(20).func(()=>{
var branch = branches.getRandom().id
var overseesBy = generatedPeople.filter(person=>person.branches==branch && ["inspector", "assistant"].indexOf(person.position) != -1)
.getRandom().id
var ownerId = privateOwners.getRandom().id
return generatePropertyForRent(generateId("PRIVATEOWNER", ownerId), generateId("STAFF",overseesBy), branch)
}).map(e=>generateInsert("PROPERTYFORRENT",[
e.city,
addresses.getRandom(),
e.postalCode,
e.propertyType,
e.rooms,
e.rent,
e.privateOwner,
e.overseesBy,
e.branchNo
])).apply(console.log)
propertiesForRent.map(property=>{
var lease = generateLease(property.id, property.privateOwner)
return generateInsert("LEASE", [
lease.id,
generateId("PROPERTYFORRENT",lease.propertyId),
lease.clientId,
lease.rent,
lease.deposit,
lease.paymentType,
formatDate(new Date(lease.rentStart)),
lease.rentFinish ? formatDate(new Date(lease.rentFinish)): "null",
lease.duration
])
}).apply(console.log)
repeat(30).func(generateViewing).map((viewing)=>{
return generateInsert("VIEWING", [
generateId("CLIENTS", viewing.client.id),
generateId("PROPERTYFORRENT", viewing.property),
formatDate(viewing.date),
viewing.feedback
])
}).apply(console.log)
// (lease.rentFinish != null ? formatDate(new Date(lease.rentFinish)) : "null"),
/* Simple Hello World in Node.js */
var year = 1;
var month = 1 / 12;
for (i = 1; i < 95; i++) {
if (i % 12 === 0) {
year++;
}
console.log(year);
}
/* Simple Hello World in Node.js */
console.log("Hello World");
/* Simple Hello World in Node.js */
var http = require("http");
http.createServer(function(request, response){
response.writeHead(200, { 'content type': 'text/plain'});
response.end("Hello world\n");
}).listen(8081);
//console will print the message
console.log("server is running at https://127.0.0.1:8081/");
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