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Diffstat (limited to 'school/node_modules/graphql/jsutils/keyMap.js')
-rw-r--r-- | school/node_modules/graphql/jsutils/keyMap.js | 36 |
1 files changed, 0 insertions, 36 deletions
diff --git a/school/node_modules/graphql/jsutils/keyMap.js b/school/node_modules/graphql/jsutils/keyMap.js deleted file mode 100644 index c067210..0000000 --- a/school/node_modules/graphql/jsutils/keyMap.js +++ /dev/null @@ -1,36 +0,0 @@ -"use strict"; - -Object.defineProperty(exports, "__esModule", { - value: true -}); -exports.default = keyMap; - -/** - * 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'] - * - */ -function keyMap(list, keyFn) { - return list.reduce(function (map, item) { - map[keyFn(item)] = item; - return map; - }, Object.create(null)); -} |