Generate random data in js

random-data.js

// Create empty array to house data
var singleDimensionArray = [];

// for 1 < 25, 25 is equal to the length of the generated array

for (var i = 0; i < 25; i ++) {
  var newNumber = Math.round(Math.random() * 30); // Create a random number between 0 - 30.
  singleDimensionArray.push(newNumber); // Adds random number to the array
}

//Dynamic, random dataset
var multipleDimensionArray = [];
var numDataPoints = 70;
var xRange = Math.random() * 2000;
var yRange = Math.random() * 2000;
for (var i = 0; i < numDataPoints; i++) {
    var newNumber1 = Math.round(Math.random() * xRange);
    var newNumber2 = Math.round(Math.random() * yRange);
    multipleDimensionArray.push([newNumber1, newNumber2]);
}