populate array using local stoage code example
Example 1: javascript store array in localstorage
//storing array in localStorage
var colors = ["red","blue","green"];
localStorage.setItem("my_colors", JSON.stringify(colors)); //store colors
var storedColors = JSON.parse(localStorage.getItem("my_colors")); //get them back
Example 2: localstorage save array
var names = [];
names[0] = prompt("New member name?");
localStorage.setItem("names", JSON.stringify(names));
//...
var storedNames = JSON.parse(localStorage.getItem("names"));