尝试将对象存储在localStorage中

Question

I'm trying to save some data to localStorage but for some reason all I get is an empty array.

var saveData = JSON.parse(localStorage.saveData || null) || {};

function saveGame() {
  saveData.buildings = "buildings";
  saveData.resources = resources;
  saveData.time = new Date();

  localStorage.saveData = JSON.stringify(saveData);
}

JSON.stringify(saveData) returns [] and
SaveData returns something weird when I put it on watch:

Array[0]
- buildings: "buildings"
- length: 0
- resources: Object
- time: <time>
- __proto__: Array[0]

What am I doing wrong?

Answer 1

Found the problem: var saveData = JSON.parse(localStorage.saveData || null) || {}; var saveData = JSON.parse(localStorage.saveData || null) || {};

Used to be: var saveData = JSON.parse(localStorage.saveData || null) || []; var saveData = JSON.parse(localStorage.saveData || null) || [];

saveData remained cached as an empty array breaking the code.