diff options
Diffstat (limited to 'alarm/node_modules/graphql/jsutils/mapValue.js.flow')
-rw-r--r-- | alarm/node_modules/graphql/jsutils/mapValue.js.flow | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/alarm/node_modules/graphql/jsutils/mapValue.js.flow b/alarm/node_modules/graphql/jsutils/mapValue.js.flow new file mode 100644 index 0000000..d6b5da4 --- /dev/null +++ b/alarm/node_modules/graphql/jsutils/mapValue.js.flow @@ -0,0 +1,20 @@ +// @flow strict +import objectEntries from '../polyfills/objectEntries'; + +import type { ObjMap } from './ObjMap'; + +/** + * Creates an object map with the same keys as `map` and values generated by + * running each value of `map` thru `fn`. + */ +export default function mapValue<T, V>( + map: ObjMap<T>, + fn: (value: T, key: string) => V, +): ObjMap<V> { + const result = Object.create(null); + + for (const [key, value] of objectEntries(map)) { + result[key] = fn(value, key); + } + return result; +} |