using template literals

__tests__/helpers/renderHelpers.js

@@ -5,7 +5,7 @@ module.exports = {
     var divArray = [];
     for (var i = 0; i < number; i++) {
       divArray.push(
-        <div className={'test-div-' + i} key={i} style={{ height: height }} />
+        <div className={`test-div-${i}`} key={i} style={{ height: height }} />
       );
     }
 
@@ -16,7 +16,7 @@ module.exports = {
     for (var i = 0; i < heights.length; i++) {
       divArray.push(
         <div
-          className={'test-div-' + i}
+          className={`test-div-${i}`}
           key={i}
           style={{ height: heights[i] }}
         />

pipeline/browserify.js

@@ -93,7 +93,7 @@ module.exports = function(shouldWatch, envObject, files) {
       });
 
       root.on('log', function() {
-        console.log('[' + moment().format() + '] Browserify bundle refreshed');
+        console.log(`[${moment().format()}] Browserify bundle refreshed`);
       });
     }
 

src/utils/checkProps.js

@@ -10,25 +10,16 @@ var _isFinite = require('lodash.isfinite');
 module.exports = function(props: ReactInfiniteProps) {
   var rie = 'Invariant Violation: ';
   if (!(props.containerHeight || props.useWindowAsScrollContainer)) {
-    throw new Error(
-      rie +
-        'Either containerHeight or useWindowAsScrollContainer must be provided.'
-    );
+    throw new Error(`${rie}Either containerHeight or useWindowAsScrollContainer must be provided.`);
   }
 
   if (!(_isFinite(props.elementHeight) || Array.isArray(props.elementHeight))) {
-    throw new Error(
-      rie +
-        'You must provide either a number or an array of numbers as the elementHeight.'
-    );
+    throw new Error(`${rie}You must provide either a number or an array of numbers as the elementHeight.`);
   }
 
   if (Array.isArray(props.elementHeight)) {
     if (React.Children.count(props.children) !== props.elementHeight.length) {
-      throw new Error(
-        rie +
-          'There must be as many values provided in the elementHeight prop as there are children.'
-      );
+      throw new Error( `${rie}There must be as many values provided in the elementHeight prop as there are children.`);
     }
   }
 };