JSON to an array?

I encountered a difficult problem when I was new to javascript,. I tried without success for a long time. So come up and ask everyone for advice.
how can I convert the json of the following structure into a two-dimensional array?

Code: 

 "piclist2": {
            "/upload/images/2018-4-17/a1.jpg": {
                "width": 1440,
                "height": 900
            },
            "/upload/images/2018-4-17/a2.jpg": {
                "width": 960,
                "height": 600
            },
            "/upload/images/2018-4-17/a3.jpg": {
                "width": 1920,
                "height": 1200
            },
            "/upload/images/2018-4-17/a4.jpg": {
                "width": 960,
                "height": 600
            }
        }

to 

"piclist2":[
            ["upload/images/2018-4-17/a1.jpg"
             "width": 1440,"height": 900
           ],
            ["upload/images/2018-4-17/a2.jpg"
             "width": 1440,
             "height": 900
           ],
             ["upload/images/2018-4-17/a3.jpg"
             "width": 1440,
             "height": 900
           ],
             ["upload/images/2018-4-17/a4.jpg"
             "width": 1440,
             "height": 900
           ],
        ]

Thank you for your advice!

Javascript
Mar.04,2021

this is not a valid array

Array objects are foolishly confused

this is not an array

clipboard.png

data format has not been seen before, whether this is an array or an json object

just save it with an object. The object of javascript is a data of map structure, and the array is a list structure, which is not written in your way.

Previous: Visit a requesturl, newspaper "error on line 1 at column 1: Document is empty"

Next: Html2canvas screenshots can only capture the visual height of the browser.

css mysql arrays josn react html typescript webpack npm sass R objective-c .net sql-server jquery python-3.x angularjs django angular excel regex iphone ajax linux xml pandas vba spring database wordpress string wpf xcode windows bash postgresql oracle multithreading eclipse list firebase algorithm macos forms image scala visual-studio azure bootstrap spring-boot react-native python-2.7 docker performance function winforms matlab powershell apache dataframe api sqlite numpy rest shell selenium flutter dart maven loops qt swing android-studio csv express file class tensorflow sorting codeigniter perl
MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1b3615c-2bfcd.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b3615c-2bfcd.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
Need Help?