toString() removes the zero at the right [duplicate]

Question

This question already has answers here:

toString and valueOf truncates trailing 0s after decimal (2 answers)

Closed 8 years ago.

I have a number, 2.0e-14, and I want to convert it to string. I'm using (2.0e-14).toString(), and what I get is the string 2e-14, because it's removing the zeroes at the right.

Is there any way of keep the zero at the right than to manipulating the string?

Answer 1

Use the Number toPrecision method.

(2.0e-14).toPrecision(2)