Opposite of Number.toExponential in JS

Question

I need to get the value of an extremely large number in JavaScript in non-exponential form. Number.toFixed simply returns it in exponential form as a string, wh

Answer 1

The answer is there's no such built-in function. I've searched high and low. Here's the RegExp I use to split the number into sign, coefficient (digits before decimal point), fractional part (digits after decimal point) and exponent:

/^([+-])?(\d+)\.?(\d*)[eE]([+-]?\d+)$/

"Roll your own" is the answer, which you already did.