From 3d1cd02f27518f1a04374c7c8320cd5d82ede6e9 Mon Sep 17 00:00:00 2001 From: Minteck Date: Thu, 23 Feb 2023 19:34:56 +0100 Subject: Updated 40 files, added 37 files, deleted 1103 files and renamed 3905 files (automated) --- .../node_modules/graphql/jsutils/keyMap.js.flow | 35 ++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 includes/external/school/node_modules/graphql/jsutils/keyMap.js.flow (limited to 'includes/external/school/node_modules/graphql/jsutils/keyMap.js.flow') diff --git a/includes/external/school/node_modules/graphql/jsutils/keyMap.js.flow b/includes/external/school/node_modules/graphql/jsutils/keyMap.js.flow new file mode 100644 index 0000000..b165360 --- /dev/null +++ b/includes/external/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( + list: $ReadOnlyArray, + keyFn: (item: T) => string, +): ObjMap { + return list.reduce((map, item) => { + map[keyFn(item)] = item; + return map; + }, Object.create(null)); +} -- cgit