Handle Date objects in compress util (#15547)

packages/shared/src/utils/compress.test.ts

@@ -36,6 +36,14 @@ const geoJSON = {
 	],
 };
 
+const dateString = '2022-02-14T01:02:11.000Z';
+const dateInput = {
+	date_created: new Date(dateString),
+};
+const dateOutput = {
+	date_created: dateString,
+};
+
 describe('compress', () => {
 	test('Compresses plain objects', () => {
 		expect(compress(plain)).toBe(
@@ -61,6 +69,10 @@ describe('compress', () => {
 		);
 	});
 
+	test('Compresses Date objects into strings', () => {
+		expect(compress(dateInput)).toBe('date_created|2022-02-14T01:02:11.000Z^^^$0|1]');
+	});
+
 	test('Throws error on non-supported types', () => {
 		expect(() => compress({ method: () => true })).toThrowError();
 	});
@@ -99,6 +111,10 @@ describe('decompress', () => {
 		).toEqual(geoJSON);
 	});
 
+	test('Decompresses Date strings', () => {
+		expect(decompress('date_created|2022-02-14T01:02:11.000Z^^^$0|1]')).toEqual(dateOutput);
+	});
+
 	test('Errors when not enough parts exist', () => {
 		expect(() => decompress('a|b^1K6^')).toThrowError();
 	});

packages/shared/src/utils/compress.ts

@@ -51,6 +51,26 @@ export function compress(obj: Record<string, any> | Record<string, any>[]) {
 			return ['@', ...part.map((subPart) => getAst(subPart))];
 		}
 
+		if (part instanceof Date) {
+			const value = encode(part.toJSON());
+
+			if (strings.has(value)) {
+				return {
+					type: Types.STRING,
+					index: strings.get(value)!,
+				};
+			}
+
+			const index = strings.size;
+
+			strings.set(value, index);
+
+			return {
+				type: Types.STRING,
+				index,
+			};
+		}
+
 		if (typeof part === 'object') {
 			return [
 				'$',