iterator value undefined is not an entry object

Question

I was trying to use Map in this code :
https://code.sololearn.com/WzIQsLiSr1mI/?ref=app

When I created a small map with about 6 entries it worked but when I added more records it gave me an error.
`Uncaught TypeError: iterator value undefined is not an entry object`

Is this limit of Map constructor? or something else?

any way to fix this? or should I use an object literal as Map like
let obj={
key:val,
key2:val2,
}; //like this.?

Thanks.

Answer 1

🇮🇳Omkar🕉 It's working. Check line no 31 . You didn't add ,

and remove , from line no 49

Answer 2

Thanks 🅰🅹 - ɪ'ᴍ ᴄʀɪᴍɪɴᴀʟʟʏ ɢᴏᴏᴅ! . I missed comma , 😅

Answer 3

🅰🅹 - ɪ'ᴍ ᴄʀɪᴍɪɴᴀʟʟʏ ɢᴏᴏᴅ! ,
I probably didn't read you're answer completely or you edited it afterwards. not sure.

"and remove , from line no 49"
~🅰🅹 - ɪ'ᴍ ᴄʀɪᴍɪɴᴀʟʟʏ ɢᴏᴏᴅ!

comma at end (trailing comma) will not give any errors. it's for convenience of adding new records, elements etc.

●Trailing comma:
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Trailing_commas

Answer 4

🇮🇳Omkar🕉 It happen in long code 😂

Answer 5

🇮🇳Omkar🕉 I know that extra comma will not give any error but it will create empty object which is not necessary.