Set SpineTo stopping threshold to 1.5 (#14)

* Set stop threshold to 1.5

* Add and update

Author: compulim

CHANGELOG.md

@@ -6,7 +6,8 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 ## [Unreleased]
 ### Changed
-- `Composer`: fix #13, user scrolling in Firefox may have the scroll position locked occasionally, in PR [#12](https://github.com/compulim/react-scroll-to-bottom/issues/12)
+- `Composer`: fix [#13](https://github.com/compulim/react-scroll-to-bottom/pull/13), user scrolling in Firefox may have the scroll position locked occasionally, in PR [#12](https://github.com/compulim/react-scroll-to-bottom/pull/12)
+- `SpineTo`: fix [#10](https://github.com/compulim/react-scroll-to-bottom/pull/10) set stopping threshold from `0.5` to `1.5`, in PR [#14](https://github.com/compulim/react-scroll-to-bottom/pull/14)
 
 ## [1.3.0] - 2019-01-21
 ### Changed

packages/component/src/SpineTo.js

@@ -79,7 +79,7 @@ export default class ScrollTo extends React.Component {
           const toNumber = to === '100%' ? target.scrollHeight - target.offsetHeight : to;
           let nextValue = step(from, toNumber, squareStepper, (Date.now() - start) / 5);
 
-          if (Math.abs(toNumber - nextValue) < .5) {
+          if (Math.abs(toNumber - nextValue) < 1.5) {
             nextValue = toNumber;
           }