SOURCE

let data = [
    [1,2,3],
    [4,5,6],
    [4,5,6],
]
let res = []
data.forEach(item=>{
    item.forEach((j,k)=>{
        if(!res[k]){
            res[k]=[]
        }
        res[k].push(j)
    })
})
console.log(res)

let arr =[{
    id:99,
    a:1,
    b:2,
    c:3
}]
let lists = [{
    id:55,
    a:6,
    m:6,
    c:999
}]
arr.map(i=>{
 lists.map(j=>{
     if(i.id==99 && j.id==55 ){
         i.c=j.c
     }
 })
})
console.log(arr,444)