diff options
Diffstat (limited to 'packages/client/src/scripts/array.ts')
| -rw-r--r-- | packages/client/src/scripts/array.ts | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/packages/client/src/scripts/array.ts b/packages/client/src/scripts/array.ts index 29d027de14..26c6195d66 100644 --- a/packages/client/src/scripts/array.ts +++ b/packages/client/src/scripts/array.ts @@ -98,7 +98,7 @@ export function groupOn<T, S>(f: (x: T) => S, xs: T[]): T[][] { export function groupByX<T>(collections: T[], keySelector: (x: T) => string) { return collections.reduce((obj: Record<string, T[]>, item: T) => { const key = keySelector(item); - if (!obj.hasOwnProperty(key)) { + if (typeof obj[key] === 'undefined') { obj[key] = []; } |