timeit function
Return the time necessary to compute a function.
Examples
var duration = timeit(() {
var xx = arrayToComplexArray(Array([0, 0, 0, 0, 1, 1, 1, 1]));
var xf = fft(xx);
});
print(duration);
Implementation
Duration timeit(Function function) {
final stopwatch = Stopwatch()..start();
function();
stopwatch.stop();
return stopwatch.elapsed;
}