编辑代码

let arr = [
    {id:1,message:'0001'},
    {id:2,message:'0002'},
    {id:3,message:'0003'},
    {id:4,message:'0004'},
    {id:5,message:'0005'},
    {id:6,message:'0006'},
    {id:7,message:'0007'},
    {id:8,message:'0008'},
    {id:9,message:'0009'},
    {id:10,message:'0010'},
]

function pagination(arr,pageIndex,pageSize){
    let totalPage = Number(arr.length/pageSize) === Math.round(arr.length/pageSize) ?
    parseInt(arr.length/pageSize) :parseInt(arr.length/pageSize) + 1;
    console.log('totalPage',totalPage)
    let res = arr.slice(pageIndex*pageSize,pageIndex*pageSize);
    console.log(`page : ${pageIndex} data : ${res}`)
}

pagination(arr,2,9)