javascript 按键对数组对象

Posted 2021-05-04

Array.prototype.groupBy = function(prop) {
  return this.reduce(function(groups, item) {
    const val = item[prop]
    groups[val] = groups[val] || []
    groups[val].push(item)
    return groups
  }, {})
}

var groupedByTime = mo.groupBy('typeSearch');

console.log(groupedByTime)