javascript JavaScript备忘单

Posted 2021-05-03

//get current date
let now = Date.now()

//get timestamp in miliseconds
let timestamp = new Date().getTime()

//get timestamp in seconds
let timestamp = Math.floor(Date.now() / 1000)

//create a new array of random number between 0 and 100
let array = new Array(50).fill().map(() => Math.floor((Math.random() * 100)))