Javascript

Question

what is meaning of "double precision floating point numbers" on JavaScirpt.

Answer 1

JavaScript numbers are always stored as double precision float numbers, following the international IEEE 754 standard. This format stores numbers in 64 bits, where the number (the fraction) is stored in bits 0 to 51, the exponent in bits 52 to 62, and the sign in bit 63: Value (aka Fraction/Mantissa) Exponent.