Answers for "ramdom many data in javascript"

javascript get random array value

//get random value from array
var colors = ["red","blue","green","yellow"];
var randColor = colors[Math.floor(Math.random() * colors.length)];

javascript random number generator

let replies = [
    "1",
    "2",
    "3",
    "4",
    "5",
    "6",
    "7",
    "8",
    "9",
    "10",
    "11",
    "12"
  ];

  let result = Math.floor(Math.random() * replies.length);