From 99c1d9af689e5325f3cf535c4007b3aeb8325229 Mon Sep 17 00:00:00 2001
From: Minteck <contact@minteck.org>
Date: Tue, 10 Jan 2023 14:54:04 +0100
Subject: Update - This is an automated commit

---
 school/node_modules/graphql/jsutils/keyMap.js.flow | 35 ++++++++++++++++++++++
 1 file changed, 35 insertions(+)
 create mode 100644 school/node_modules/graphql/jsutils/keyMap.js.flow

(limited to 'school/node_modules/graphql/jsutils/keyMap.js.flow')

diff --git a/school/node_modules/graphql/jsutils/keyMap.js.flow b/school/node_modules/graphql/jsutils/keyMap.js.flow
new file mode 100644
index 0000000..b165360
--- /dev/null
+++ b/school/node_modules/graphql/jsutils/keyMap.js.flow
@@ -0,0 +1,35 @@
+// @flow strict
+import type { ObjMap } from './ObjMap';
+
+/**
+ * Creates a keyed JS object from an array, given a function to produce the keys
+ * for each value in the array.
+ *
+ * This provides a convenient lookup for the array items if the key function
+ * produces unique results.
+ *
+ *     const phoneBook = [
+ *       { name: 'Jon', num: '555-1234' },
+ *       { name: 'Jenny', num: '867-5309' }
+ *     ]
+ *
+ *     // { Jon: { name: 'Jon', num: '555-1234' },
+ *     //   Jenny: { name: 'Jenny', num: '867-5309' } }
+ *     const entriesByName = keyMap(
+ *       phoneBook,
+ *       entry => entry.name
+ *     )
+ *
+ *     // { name: 'Jenny', num: '857-6309' }
+ *     const jennyEntry = entriesByName['Jenny']
+ *
+ */
+export default function keyMap<T>(
+  list: $ReadOnlyArray<T>,
+  keyFn: (item: T) => string,
+): ObjMap<T> {
+  return list.reduce((map, item) => {
+    map[keyFn(item)] = item;
+    return map;
+  }, Object.create(null));
+}
-- 
cgit