diff options
Diffstat (limited to 'packages/idb-bridge/src/util/normalizeKeyPath.ts')
-rw-r--r-- | packages/idb-bridge/src/util/normalizeKeyPath.ts | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/packages/idb-bridge/src/util/normalizeKeyPath.ts b/packages/idb-bridge/src/util/normalizeKeyPath.ts new file mode 100644 index 000000000..4e194b2d1 --- /dev/null +++ b/packages/idb-bridge/src/util/normalizeKeyPath.ts @@ -0,0 +1,41 @@ +/* + Copyright 2017 Jeremy Scheff + Copyright 2019 Florian Dold + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express + or implied. See the License for the specific language governing + permissions and limitations under the License. +*/ + +import { IDBKeyPath } from "../idbtypes"; + +export function normalizeKeyPath( + keyPath: IDBKeyPath | IDBKeyPath[], +): string | string[] { + if (Array.isArray(keyPath)) { + const path: string[] = []; + for (let item of keyPath) { + // This doesn't make sense to me based on the spec, but it is needed to pass the W3C KeyPath tests (see same + // comment in validateKeyPath) + if ( + item !== undefined && + item !== null && + typeof item !== "string" && + (item as any).toString + ) { + item = (item as any).toString(); + } + path.push(item); + } + return path; + } + return keyPath; +} |