js id generator

1var ID = function () {
2  // Math.random should be unique because of its seeding algorithm.
3  // Convert it to base 36 (numbers + letters), and grab the first 9 characters
4  // after the decimal.
5  return '_' + Math.random().toString(36).substr(2, 9);
6};

1//you can just use date as id
2Date.now()
3// returns 1576996323453

1$ npm install uuid
2
3const uuidv4 = require("uuid/v4")
4
5uuidv4()
6// expected: 1b9d6bcd-bbfd-4b2d-9b5d-ab8dfbbd4bed