Merge pull request #26100 from software-mansion-labs/kowczarz/refacto…

…r-CardUtils [No QA][TS migration] Migrate `CardUtils.js` lib to TypeScript
Expensify · Aug 29, 2023 · 0f5467d · 0f5467d
2 parents 766dd65 + 8177e0a
commit 0f5467d
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diff --git a/src/libs/CardUtils.js b/src/libs/CardUtils.js
diff --git a/src/libs/CardUtils.ts b/src/libs/CardUtils.ts
@@ -0,0 +1,18 @@
+/**
+ * @returns string with a month in MM format
+ */
+function getMonthFromExpirationDateString(expirationDateString: string) {
+    return expirationDateString.substring(0, 2);
+}
+
+/**
+ * @returns string with a year in YY or YYYY format
+ */
+function getYearFromExpirationDateString(expirationDateString: string) {
+    const stringContainsNumbersOnly = /^\d+$/.test(expirationDateString);
+    const cardYear = stringContainsNumbersOnly ? expirationDateString.substring(2) : expirationDateString.substring(3);
+
+    return cardYear.length === 2 ? `20${cardYear}` : cardYear;
+}
+
+export {getMonthFromExpirationDateString, getYearFromExpirationDateString};