add hw2

node_modules/@react-aria/utils/dist/useValueEffect.main.js

@@ -0,0 +1,58 @@
+var $1254e5bb94ac8761$exports = require("./useEffectEvent.main.js");
+var $78605a5d7424e31b$exports = require("./useLayoutEffect.main.js");
+var $fymK9$react = require("react");
+
+
+function $parcel$export(e, n, v, s) {
+  Object.defineProperty(e, n, {get: v, set: s, enumerable: true, configurable: true});
+}
+
+$parcel$export(module.exports, "useValueEffect", () => $19a2307bfabafaf1$export$14d238f342723f25);
+/*
+ * Copyright 2020 Adobe. All rights reserved.
+ * This file is licensed to you under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License. You may obtain a copy
+ * of the License at http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software distributed under
+ * the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR REPRESENTATIONS
+ * OF ANY KIND, either express or implied. See the License for the specific language
+ * governing permissions and limitations under the License.
+ */ 
+
+function $19a2307bfabafaf1$export$14d238f342723f25(defaultValue) {
+    let [value, setValue] = (0, $fymK9$react.useState)(defaultValue);
+    let effect = (0, $fymK9$react.useRef)(null);
+    // Store the function in a ref so we can always access the current version
+    // which has the proper `value` in scope.
+    let nextRef = (0, $1254e5bb94ac8761$exports.useEffectEvent)(()=>{
+        if (!effect.current) return;
+        // Run the generator to the next yield.
+        let newValue = effect.current.next();
+        // If the generator is done, reset the effect.
+        if (newValue.done) {
+            effect.current = null;
+            return;
+        }
+        // If the value is the same as the current value,
+        // then continue to the next yield. Otherwise,
+        // set the value in state and wait for the next layout effect.
+        if (value === newValue.value) nextRef();
+        else setValue(newValue.value);
+    });
+    (0, $78605a5d7424e31b$exports.useLayoutEffect)(()=>{
+        // If there is an effect currently running, continue to the next yield.
+        if (effect.current) nextRef();
+    });
+    let queue = (0, $1254e5bb94ac8761$exports.useEffectEvent)((fn)=>{
+        effect.current = fn(value);
+        nextRef();
+    });
+    return [
+        value,
+        queue
+    ];
+}
+
+
+//# sourceMappingURL=useValueEffect.main.js.map