测试

frontend/node_modules/memoize-one/src/are-inputs-equal.ts

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+// Number.isNaN as it is not supported in IE11 so conditionally using ponyfill
+// Using Number.isNaN where possible as it is ~10% faster
+
+const safeIsNaN =
+  Number.isNaN ||
+  function ponyfill(value: unknown): boolean {
+    // // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/isNaN#polyfill
+    // NaN is the only value in JavaScript which is not equal to itself.
+    return typeof value === 'number' && value !== value;
+  };
+
+function isEqual(first: unknown, second: unknown): boolean {
+  if (first === second) {
+    return true;
+  }
+
+  // Special case for NaN (NaN !== NaN)
+  if (safeIsNaN(first) && safeIsNaN(second)) {
+    return true;
+  }
+
+  return false;
+}
+
+export default function areInputsEqual(
+  newInputs: readonly unknown[],
+  lastInputs: readonly unknown[],
+): boolean {
+  // no checks needed if the inputs length has changed
+  if (newInputs.length !== lastInputs.length) {
+    return false;
+  }
+  // Using for loop for speed. It generally performs better than array.every
+  // https://github.com/alexreardon/memoize-one/pull/59
+  for (let i = 0; i < newInputs.length; i++) {
+    if (!isEqual(newInputs[i], lastInputs[i])) {
+      return false;
+    }
+  }
+  return true;
+}