Jesus sucks

backend/frontend/node_modules/@restart/hooks/cjs/useMergeState.js

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+"use strict";
+
+exports.__esModule = true;
+exports.default = useMergeState;
+var _react = require("react");
+/**
+ * Updates state, partial updates are merged into existing state values
+ */
+
+/**
+ * Mimics a React class component's state model, of having a single unified
+ * `state` object and an updater that merges updates into the existing state, as
+ * opposed to replacing it.
+ *
+ * ```js
+ * const [state, setState] = useMergeState({ name: 'Betsy', age: 24 })
+ *
+ * setState({ name: 'Johan' }) // { name: 'Johan', age: 24 }
+ *
+ * setState(state => ({ age: state.age + 10 })) // { name: 'Johan', age: 34 }
+ * ```
+ *
+ * @param initialState The initial state object
+ */
+function useMergeState(initialState) {
+  const [state, setState] = (0, _react.useState)(initialState);
+  const updater = (0, _react.useCallback)(update => {
+    if (update === null) return;
+    if (typeof update === 'function') {
+      setState(state => {
+        const nextState = update(state);
+        return nextState == null ? state : Object.assign({}, state, nextState);
+      });
+    } else {
+      setState(state => Object.assign({}, state, update));
+    }
+  }, [setState]);
+  return [state, updater];
+}