getPrecision incorrectly calculates precision of decimal with scientific notation

Reproduction:
-Navigate to http://react-component.github.io/input-number/examples?path=/story/rc-input-number--decimal
-Select decimal
-Enter '0.000000xx'
-Click out of the input

Expected - Value is preserved as entered
Actual - Value is truncated

This is due to a difference in the calculation of precision by the getPrecision function between a decimal using scientific notation and not, for example, getPrecision(0.0000001234) would return 10 but getPrecision(1.234e-7) would return 7, surely they should both return 10.

I figured this would be a simple fix, so I tested a simple change (see below) but a lot of tests broke with my change, although the failing test I added to cover the issue did pass.

if (valueString.indexOf('e-') >= 0) { if(valueString.indexOf('.') >= 0) { return parseInt(valueString.slice(valueString.indexOf('e-') + 2), 10) + parseInt(valueString.slice(valueString.indexOf('.') + 1, valueString.indexOf('e-')).length); } return parseInt(valueString.slice(valueString.indexOf('e-') + 2), 10); }

The issue centers on getPrecision and the decimal example at the linked react-component story; start by locating that function and reproducing the scientific-notation case. Run the existing test suite, including the added regression test described in the issue, and consider the work done when both notation forms preserve the entered precision without breaking existing tests.