如何将几个数组运算符合并为一个？ Javascript

Question

I want to merge operators into one line of code if possible?

this.markers = [...new Map(this.markers.map(address => [Number(address.latitude), address])).values()] 
this.markers = this.markers.filter(marker => marker.hasOwnProperty('pointId'))

This two line if i can to concate with one?

Answer 1

I would filter in advance and then get the mapped result.

this.markers = [...new Map(this.markers
    .filter(marker => marker.hasOwnProperty('pointId'))
    .map(address => [+address.latitude, address])
).values()];