toExponential — Returns a string representation of the specified Number object.
Description
Number.toExponential([integer decimals])
Parameters
Name
Description
Type
Default
Optional
decimals
A number between 0 and 20 representing number of digits.
integer
Yes
Examples
Example #1 – toFixed example
var n = new Number(42.12345);
console.log(n.toExponential()); // Will be the primitive string "4.212345e+1".
console.log(n.toExponential(2)); // Will be the primitive string "4.21e+1".
console.log(n.toExponential(4)); // Will be the primitive string "4.2123e+1".
console.log(n.toExponential(8)); // Will be the primitive string "4.21234500e+1".