如何将随机 integer 分配给数组 JavaScript 中的每个 object

Question

Edited to include a reproducible example. When a new task is created, a quantity can be input to create multiple tasks with the same data. In this case, the quantity is 3, so three tasks will be created with the other name:value pairs within the newtaskconfig object. The quantity is used in the for loop to push that many tasks to the newtasks array. An id with a random three digit integer is then assigned to each object within the newtasks array.

newtaskconfig = {
  site: 'YeezySupply',
  findby: 'URL',
  urlorpid: 'test.com',
  useproxies: 'TRUE',
  quantity: 3
}
quantity = Number(newtaskconfig.quantity)
delete newtaskconfig.quantity
newtasks=[]
for (i = 0; i < quantity; i++)  
{ 
  newtasks.push(newtaskconfig)
}
newtasks.forEach(task=>{
  task.id=Math.floor(Math.random()*(900)+100)
})

When I then log the newtasks array to console, instead of each object having a unique id, they all end up with the exact same one, shown here:

[
  {
    site: 'YeezySupply',
    findby: 'URL',
    urlorpid: 'test.com',
    useproxies: 'TRUE',
    id: 346
  },
  {
    site: 'YeezySupply',
    findby: 'URL',
    urlorpid: 'test.com',
    useproxies: 'TRUE',
    id: 346
  },
  {
    site: 'YeezySupply',
    findby: 'URL',
    urlorpid: 'test.com',
    useproxies: 'TRUE',
    id: 346
  }
]

How can I change my approach so that each object within the array is assigned a unique three digit id?

Answer 1

Just change the line to newtasks.push({...newtaskconfig}) , instead of newtasks.push(newtaskconfig) which causing have same ref.

Update: as @jonrsharpe suggest, simplify the code to the following.

 newtaskconfig = { site: "YeezySupply", findby: "URL", urlorpid: "test.com", useproxies: "TRUE", quantity: 3 }; const { quantity, ...rest } = newtaskconfig; const newtasks = new Array(quantity).fill(0).map(() => ({...rest, id: Math.floor(Math.random() * 900 + 100) })); console.log(newtasks);