[lint] fix consistent-returns

src/addons/link/__tests__/ReactLinkPropTypes-test.js

@@ -40,7 +40,7 @@ function typeCheckPass(declaration, value) {
     'testComponent',
     ReactPropTypeLocations.prop
   );
-  expect(error).toBe(undefined);
+  expect(error).toBe(null);
 }
 
 describe('ReactLink', function() {

src/browser/eventPlugins/BeforeInputEventPlugin.js

@@ -256,7 +256,7 @@ function extractCompositionEvent(
   }
 
   if (!eventType) {
-    return;
+    return null;
   }
 
   if (useFallbackCompositionData) {
@@ -427,7 +427,7 @@ function extractBeforeInputEvent(
   // If no characters are being inserted, no BeforeInput event should
   // be fired.
   if (!chars) {
-    return;
+    return null;
   }
 
   var event = SyntheticInputEvent.getPooled(

src/browser/eventPlugins/SelectEventPlugin.js

@@ -95,7 +95,7 @@ function constructSelectEvent(nativeEvent) {
   if (mouseDown ||
       activeElement == null ||
       activeElement !== getActiveElement()) {
-    return;
+    return null;
   }
 
   // Only fire when selection has actually changed.

src/browser/eventPlugins/TapEventPlugin.js

@@ -117,7 +117,7 @@ var TapEventPlugin = {
       usedTouchTime = Date.now();
     } else {
       if (usedTouch && (Date.now() - usedTouchTime < TOUCH_DELAY)) {
-        return;
+        return null;
       }
     }
     var event = null;

src/browser/ui/ReactEventListener.js

@@ -123,7 +123,7 @@ var ReactEventListener = {
   trapBubbledEvent: function(topLevelType, handlerBaseName, handle) {
     var element = handle;
     if (!element) {
-      return;
+      return null;
     }
     return EventListener.listen(
       element,
@@ -145,7 +145,7 @@ var ReactEventListener = {
   trapCapturedEvent: function(topLevelType, handlerBaseName, handle) {
     var element = handle;
     if (!element) {
-      return;
+      return null;
     }
     return EventListener.capture(
       element,

src/browser/ui/dom/components/LinkedValueUtils.js

@@ -81,7 +81,7 @@ var LinkedValueUtils = {
             props.onChange ||
             props.readOnly ||
             props.disabled) {
-          return;
+          return null;
         }
         return new Error(
           'You provided a `value` prop to a form field without an ' +
@@ -95,7 +95,7 @@ var LinkedValueUtils = {
             props.onChange ||
             props.readOnly ||
             props.disabled) {
-          return;
+          return null;
         }
         return new Error(
           'You provided a `checked` prop to a form field without an ' +

src/browser/ui/dom/components/ReactDOMSelect.js

@@ -39,7 +39,7 @@ function updateOptionsIfPendingUpdateAndMounted() {
  */
 function selectValueType(props, propName, componentName) {
   if (props[propName] == null) {
-    return;
+    return null;
   }
   if (props.multiple) {
     if (!Array.isArray(props[propName])) {

src/classic/types/ReactPropTypes.js

@@ -98,6 +98,7 @@ function createChainableTypeChecker(validate) {
           `\`${componentName}\`.`
         );
       }
+      return null;
     } else {
       return validate(props, propName, componentName, location);
     }
@@ -125,12 +126,13 @@ function createPrimitiveTypeChecker(expectedType) {
         `supplied to \`${componentName}\`, expected \`${expectedType}\`.`
       );
     }
+    return null;
   }
   return createChainableTypeChecker(validate);
 }
 
 function createAnyTypeChecker() {
-  return createChainableTypeChecker(emptyFunction.thatReturns());
+  return createChainableTypeChecker(emptyFunction.thatReturns(null));
 }
 
 function createArrayOfTypeChecker(typeChecker) {
@@ -150,6 +152,7 @@ function createArrayOfTypeChecker(typeChecker) {
         return error;
       }
     }
+    return null;
   }
   return createChainableTypeChecker(validate);
 }
@@ -163,6 +166,7 @@ function createElementTypeChecker() {
         `\`${componentName}\`, expected a ReactElement.`
       );
     }
+    return null;
   }
   return createChainableTypeChecker(validate);
 }
@@ -177,6 +181,7 @@ function createInstanceTypeChecker(expectedClass) {
         `\`${componentName}\`, expected instance of \`${expectedClassName}\`.`
       );
     }
+    return null;
   }
   return createChainableTypeChecker(validate);
 }
@@ -186,7 +191,7 @@ function createEnumTypeChecker(expectedValues) {
     var propValue = props[propName];
     for (var i = 0; i < expectedValues.length; i++) {
       if (propValue === expectedValues[i]) {
-        return;
+        return null;
       }
     }
 
@@ -219,6 +224,7 @@ function createObjectOfTypeChecker(typeChecker) {
         }
       }
     }
+    return null;
   }
   return createChainableTypeChecker(validate);
 }
@@ -228,7 +234,7 @@ function createUnionTypeChecker(arrayOfTypeCheckers) {
     for (var i = 0; i < arrayOfTypeCheckers.length; i++) {
       var checker = arrayOfTypeCheckers[i];
       if (checker(props, propName, componentName, location) == null) {
-        return;
+        return null;
       }
     }
 
@@ -250,6 +256,7 @@ function createNodeChecker() {
         `\`${componentName}\`, expected a ReactNode.`
       );
     }
+    return null;
   }
   return createChainableTypeChecker(validate);
 }
@@ -275,6 +282,7 @@ function createShapeTypeChecker(shapeTypes) {
         return error;
       }
     }
+    return null;
   }
   return createChainableTypeChecker(validate, 'expected `object`');
 }

src/classic/types/__tests__/ReactPropTypes-test.js

@@ -41,7 +41,7 @@ function typeCheckPass(declaration, value) {
     'testComponent',
     ReactPropTypeLocations.prop
   );
-  expect(error).toBe(undefined);
+  expect(error).toBe(null);
 }
 
 describe('ReactPropTypes', function() {

src/core/ReactChildReconciler.js

@@ -67,7 +67,7 @@ var ReactChildReconciler = {
     // can quickly bailout if nothing has changed.
     var nextChildren = flattenChildren(nextNestedChildNodes);
     if (!nextChildren && !prevChildren) {
-      return;
+      return null;
     }
     var name;
     for (name in nextChildren) {