# toStringAsFixed method

String toStringAsFixed (int fractionDigits)

Returns a decimal-point string-representation of `this`.

Converts `this` to a double before computing the string representation.

If the absolute value of `this` is greater or equal to `10^21` then this methods returns an exponential representation computed by `this.toStringAsExponential()`. Otherwise the result is the closest string representation with exactly `fractionDigits` digits after the decimal point. If `fractionDigits` equals 0 then the decimal point is omitted.

The parameter `fractionDigits` must be an integer satisfying: `0 <= fractionDigits <= 20`.

Examples:

    1.toStringAsFixed(3);  // 1.000
    (4321.12345678).toStringAsFixed(3);  // 4321.123
    (4321.12345678).toStringAsFixed(5);  // 4321.12346
    123456789012345678901.toStringAsFixed(3);  // 123456789012345683968.000
    1000000000000000000000.toStringAsFixed(3); // 1e+21
    5.25.toStringAsFixed(0); // 5

## Implementation

    String toStringAsFixed(int fractionDigits);