fullPrecisionFloats not working for some cases.

[zblcool]

Hi, I have used the lib and it significantly reduces the size of the object.
However, I noticed that even when I have made the fullPrecisionFloats to be true.
some of the attributes' 13th decimal places were still be rounded to the 12th decimal places. This might sound a little bit picky but I am just wondering is this something with JavaScript or if this can be avoided somehow.

The weird part is. For some of the fields, they got 17 or even 18 decimal places. but they remain the same as the original data.

• workflow: original file -> stringify -> parsed

Left: original file ; Right: file parsed