planning

node_modules/memoize-one/dist/memoize-one.esm.js

@@ -0,0 +1,49 @@
+var safeIsNaN = Number.isNaN ||
+    function ponyfill(value) {
+        return typeof value === 'number' && value !== value;
+    };
+function isEqual(first, second) {
+    if (first === second) {
+        return true;
+    }
+    if (safeIsNaN(first) && safeIsNaN(second)) {
+        return true;
+    }
+    return false;
+}
+function areInputsEqual(newInputs, lastInputs) {
+    if (newInputs.length !== lastInputs.length) {
+        return false;
+    }
+    for (var i = 0; i < newInputs.length; i++) {
+        if (!isEqual(newInputs[i], lastInputs[i])) {
+            return false;
+        }
+    }
+    return true;
+}
+
+function memoizeOne(resultFn, isEqual) {
+    if (isEqual === void 0) { isEqual = areInputsEqual; }
+    var lastThis;
+    var lastArgs = [];
+    var lastResult;
+    var calledOnce = false;
+    function memoized() {
+        var newArgs = [];
+        for (var _i = 0; _i < arguments.length; _i++) {
+            newArgs[_i] = arguments[_i];
+        }
+        if (calledOnce && lastThis === this && isEqual(newArgs, lastArgs)) {
+            return lastResult;
+        }
+        lastResult = resultFn.apply(this, newArgs);
+        calledOnce = true;
+        lastThis = this;
+        lastArgs = newArgs;
+        return lastResult;
+    }
+    return memoized;
+}
+
+export default memoizeOne;