如何合并对象数组中的深值

function deepMerge(target, source) {
  for (var key in source) {
    if (source.hasOwnProperty(key)) {
      if (source[key] instanceof Object && !Array.isArray(source[key])) {
        if (!target[key]) {
          target[key] = {};
        }
        deepMerge(target[key], source[key]);
      } else if (Array.isArray(source[key])) {
        if (!target[key]) {
          target[key] = [];
        }
        target[key] = target[key].concat(source[key]);
      } else {
        target[key] = source[key];
      }
    }
  }
}

var objArray = [
  { name: 'John', age: 30, hobbies: ['reading', 'coding'] },
  { name: 'Jane', age: 25, hobbies: ['swimming', 'painting'] }
];

var mergedObj = {};

for (var i = 0; i < objArray.length; i++) {
  deepMerge(mergedObj, objArray[i]);
}

console.log(mergedObj);