Take the 2-minute tour ×  I am wondering whether the following
floating point notation is a valid JSON notation:   or should
the exponent notation should be replaced with a decimal
notation?  share|improve this question Follow the railroad
tracks at json.org –  user2864740 Oct 24 '13 at 1:04  2 Answers
2  up vote 13 down vote accepted  It is valid according to the
format available at json.org as numbers can optionally have a
base 10 exponent denoted by an E, uppercase or lowercase, an
optional plus or minus, and one or more digits.  image of JSON
number format  share|improve this answer  It's perfectly valid,
according to RFC 4627 RFC 7159*:       Exponents are permitted
to have leading 0s, but not the integer section:  number = [
minus ] int [ frac ] [ exp ]  decimal-point = %x2E       ; .
digit1-9 = %x31-39         ; 1-9  e = %x65 / %x45            ; e
E  exp = e [ minus / plus ] 1*DIGIT  frac = decimal-point
1*DIGIT  int = zero / ( digit1-9 *DIGIT )  minus = %x2D
; -  plus = %x2B