【无标题】数组对象根据某个属性求和

const arr = [
			{count: 1},
			{count: 2}
			]
const sum = arr.reduce((pre, cur) => {
                        return pre + cur.count
                    }, 0)

原文链接：https://blog.csdn.net/weixin_43727391/article/details/124583917