快速复制 深层物体复印机 目录 用法 import copy from "fast-copy" ; import { deepEqual } from "fast-equals" ; const object = { array : [ 123 , { deep : "value" } ] , map : new Map ( [ [ "foo" , { } ] , [ { bar : "baz" } , "quz" ] ] ) } ; const copiedObject = copy