From 2c4ae43e688a9873e86211ea0e7aeb9ba770dd77 Mon Sep 17 00:00:00 2001 From: Minteck <contact@minteck.org> Date: Tue, 18 Oct 2022 08:59:09 +0200 Subject: Update --- alarm/node_modules/graphql/jsutils/keyMap.mjs | 29 +++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100644 alarm/node_modules/graphql/jsutils/keyMap.mjs (limited to 'alarm/node_modules/graphql/jsutils/keyMap.mjs') diff --git a/alarm/node_modules/graphql/jsutils/keyMap.mjs b/alarm/node_modules/graphql/jsutils/keyMap.mjs new file mode 100644 index 0000000..567dd86 --- /dev/null +++ b/alarm/node_modules/graphql/jsutils/keyMap.mjs @@ -0,0 +1,29 @@ +/** + * 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, keyFn) { + return list.reduce(function (map, item) { + map[keyFn(item)] = item; + return map; + }, Object.create(null)); +} -- cgit