//返回每個系列名稱，及每個系列一共有多少個課（lesson的總數(shù)）;問題出現(xiàn)的環(huán)境背景及自己嘗試過哪些方法相關代碼constSeries=[{name:'Web',courses:[{name:'HTML',lessons:[{name:'HTMLLesson1'},{name:'HTMLLesson2'},{name:'HTMLLesson3'}]},{name:'CSS',lessons:[{name:'CSSLesson1'},{name:'CSSLesson2'},{name:'CSSLesson3'},{name:'CSSLesson4'}]},{name:'JavaScript',lessons:[{name:'JavaScriptLesson1'},{name:'JavaScriptLesson2'}]}]},{name:'PHP',courses:[{name:'Linux',lessons:[{name:'LinuxLesson1'},{name:'LinuxLesson2'}]},{name:'MySQL',lessons:[{name:'MySQLLesson1'},{name:'MySQLLesson2'},{name:'MySQLLesson3'},{name:'MySQLLesson4'}]},{name:'Nginx',lessons:[{name:'NginxLesson1'},{name:'NginxLesson2'},{name:'NginxLesson3'},{name:'NginxLesson4'}]}]}]functionoutput3(Series){//...}output3(Series)題目來源及自己的思路aitschool求解答和思路