javascript javascript中的分页逻辑包括当前页面，总页面，最大按钮显示

Posted 2021-05-03

const paging =  () => {

  const current_page = 2,
    total_pages = 10,
    max_buttons = 4

  let range = total_pages / max_buttons
  if (range % 1 > 0) range += 1

  const result = Array.from({length: range}, (_v, r) => r + 1).map(i =>
    Array.from({length: last_page}, (_v, pages) => pages + 1).slice(
      max * (i - 1),
      max * i
    )                                                              
  ).filter(res => res.includes(current_page))[0]
  return result.filter(res => res.includes(current_page))[0]
}