比较2个嵌套的JSON并突出显示它们与Javascript的差异

function compareJSON(json1, json2) {
  var diff = {};

  function compare(obj1, obj2, path) {
    for (var key in obj1) {
      if (obj1.hasOwnProperty(key)) {
        if (typeof obj2[key] === 'undefined') {
          diff[path + key] = obj1[key];
        } else if (typeof obj1[key] === 'object' && typeof obj2[key] === 'object') {
          compare(obj1[key], obj2[key], path + key + '.');
        } else if (obj1[key] !== obj2[key]) {
          diff[path + key] = obj1[key];
        }
      }
    }
  }

  compare(json1, json2, '');

  return diff;
}

var json1 = JSON.parse('{"name": "John", "age": 30, "address": {"street": "123 Main St", "city": "New York"}}');
var json2 = JSON.parse('{"name": "John", "age": 35, "address": {"street": "123 Main St", "city": "Los Angeles"}}');

var differences = compareJSON(json1, json2);

// 输出差异
for (var key in differences) {
  console.log(key + ': ' + differences[key]);
}