Converts this
to a double and returns a string representation with exactly precision
significant digits.
The parameter precision
must be an integer satisfying: 1 <= precision <= 21
.
Examples:
1.toStringAsPrecision(2); // 1.0 1e15.toStringAsPrecision(3); // 1.00e+15 1234567.toStringAsPrecision(3); // 1.23e+6 1234567.toStringAsPrecision(9); // 1234567.00 12345678901234567890.toStringAsPrecision(20); // 12345678901234567168 12345678901234567890.toStringAsPrecision(14); // 1.2345678901235e+19 0.00000012345.toStringAsPrecision(15); // 1.23450000000000e-7 0.0000012345.toStringAsPrecision(15); // 0.00000123450000000000
String toStringAsPrecision(int precision);
© 2012 the Dart project authors
Licensed under the Creative Commons Attribution-ShareAlike License v4.0.
https://api.dartlang.org/stable/2.0.0/dart-core/num/toStringAsPrecision.html