Printing double numbers

[woodholly]

How to print Double number in ordinal, non-exponential form ?
For example, I can turn it into exponential form:
console.log(new Double('10000000000').div(new Double('3')).toExponential());
'3.333333333333333333333333333333350e+9'
But how to turn it into string:
'3333333333.333333333333333333333333' ?

[KurtPreston]

I was attempting to implement this. This implementation seems to work, with the huge caveat that it depends on .toExponential() which appears to sometimes return incorrect results (just filed this error as #92).

But, in case this is useful to anyone, here's how I was converting the exponential into a standard double string.

function doubleToString(double: Double): string {
  const expString = double.toExponential();
  const match = /^(-)?(\d+)(\.(\d+))?e([+-]\d+)$/.exec(expString);
  const [_match, neg, first, _dec, decString, expStr] = match;
  const negStr = neg ? '-' : '';
  const exp = parseInt(expStr);

  if(exp === 0) {
    return `${negStr}${first}`;
  } else {
    const withoutDec = `${first}${decString || ''}`;
    const leftSide = withoutDec.slice(0, exp + 1).padEnd(exp + 1, '0') || '0';
    const rightSide = withoutDec.slice(exp + 1).padStart(exp * -1, '0');
    if(rightSide) {
      return `${negStr}${leftSide}.${rightSide}`;
    } else {
      return `${negStr}${leftSide}`;
    }
  }
}