任何人都在 mongodbshell 中遇到过这个问题
let martian = db.movieDetails.find({"title":"The Martian"})
let martian = db.movieDetails.find({"title":"The Martian"})
2020-04-20T12:54:11.297+0400 E QUERY [js] uncaught exception: SyntaxError: redeclaration of let martian :
@(shell):1:1