updating value in state only if it really changes

so avoiding unnecessary re-rendering and unnecessary calling of onChange from _updateWithChangeEvent.
tyfoo · Oct 15, 2015 · d27fbdb · d27fbdb
1 parent 65939e3
commit d27fbdb
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/src/slider.jsx b/src/slider.jsx
@@ -400,7 +400,9 @@ const Slider = React.createClass({
     let value = this._alignValue(this._percentToValue(percent));
     let { min, max } = this.props;
     let alignedPercent = (value - min) / (max - min);
-    this.setState({value: value, percent: alignedPercent}, callback);
+    if (this.state.value !== value) {
+      this.setState({value: value, percent: alignedPercent}, callback);
+    }
   },
 
   clearValue() {