使用 ES6 编写一个超简单的搜索算法

let result = appData.map(item => Object.assign(item, {    "count": arr.map(i =>         item.name.toLowerCase().includes(i.toLowerCase()) ||        item.comment.toLowerCase().includes(i.toLowerCase())    ).filter(i => !!i).length})).filter(item => item.count > 0).sort((a, b) => b.count - a.count);

[    {"name":..., "comment":....,...},    {"name":..., "comment":....,...},    {"name":..., "comment":....,...},    ...]