to-offset-date-time

sdk/core/core-util/review/core-util.api.md

@@ -79,6 +79,9 @@ export function randomUUID(): string;
 // @public
 export function stringToUint8Array(value: string, format: EncodingType): Uint8Array;
 
+// @public (undocumented)
+export function toISOStringWithTimezone(date: Date): string;
+
 // @public
 export function uint8ArrayToString(bytes: Uint8Array, format: EncodingType): string;
 

sdk/core/core-util/src/datetime.ts

@@ -0,0 +1,8 @@
+export function toOffsetDateTime(date: Date) {
+  const tzOffset = -date.getTimezoneOffset();
+  const diff = tzOffset >= 0 ? "+" : "-";
+  const pad = (n: number) => `${Math.floor(Math.abs(n))}`.padStart(2, "0");
+  return (
+    date.toISOString().replace(/Z$/, "") + diff + pad(tzOffset / 60) + ":" + pad(tzOffset % 60)
+  );
+}

sdk/core/core-util/src/index.ts

@@ -11,3 +11,4 @@ export { isDefined, isObjectWithProperties, objectHasProperty } from "./typeGuar
 export { randomUUID } from "./uuidUtils";
 export { isBrowser, isBun, isNode, isDeno, isReactNative, isWebWorker } from "./checkEnvironment";
 export { uint8ArrayToString, stringToUint8Array, EncodingType } from "./bytesEncoding";
+export { toOffsetDateTime } from "./datetime";

sdk/core/core-util/test/public/datetime.spec.ts

@@ -0,0 +1,15 @@
+// Copyright (c) Microsoft Corporation.
+// Licensed under the MIT license.
+
+import { toOffsetDateTime } from "../../src/datetime";
+import { assert } from "chai";
+
+describe("utcDateTime with timezone offset", function () {
+
+  describe("work in +08:00 timezone", function () {
+    it("converts a base64 string to bytes", function () {
+      const date = new Date("2022-01-05T19:08:10Z");
+      assert.strictEqual(toOffsetDateTime(date), "2022-01-05T19:08:10.000+08:00");
+    });
+  });
+});