react rendering elements from array code example

Example: rendering an array inside an array in react

list.map((item, index) => {
            return (
              <div key={index}>
                <ul >{item.value}</ul>
               {
                item.list.map((subitem, i) => {
                  return (
                     <ul ><li>{subitem.value}</li></ul>
                  )
                })
               }
              </div>
            )
          }