javascript - Number value is getting changed in JS -


this question has answer here:

this post id:

var postid = 47213486358396931; var postcomments = "comment";

adding in object 

var param = {     "postid" : postid,     "postcomment":postcomments }

if print param this. last digit of number changed 0. why getting this. 

{"postid" : 47213486358396930, "postcomment": "comment"}


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