Extracting the exponent and mantissa of a Javascript Number

Question

Is there a reasonably fast way to extract the exponent and mantissa from a Number in Javascript?

AFAIK there\'s no way to get at the bits behind a Number in Javascri

Answer 1

What about following to get the exponent?:

let exp = String(number.toExponential());
exp = Number(exp.substr(exp.lastIndexOf('e')+1));

1000 will result in exp = 3