Add extension: isERC20 (#2846)

Signed-off-by: Jonas Daniels <jonas.daniels@outlook.com>
Co-authored-by: Jonas Daniels <jonas.daniels@outlook.com>

Author: kien-ngo

.changeset/tidy-zoos-compare.md

@@ -0,0 +1,5 @@
+---
+"thirdweb": minor
+---
+
+Add isERC20 extension

packages/thirdweb/src/exports/extensions/erc20.ts

@@ -1,4 +1,5 @@
 // read
+export { isERC20 } from "../../extensions/erc20/read/isERC20.js";
 export {
   getBalance,
   type GetBalanceParams,

packages/thirdweb/src/extensions/erc20/read/isERC20.ts

@@ -0,0 +1,20 @@
+import type { BaseTransactionOptions } from "../../../transaction/types.js";
+import { supportsInterface } from "../../erc165/__generated__/IERC165/read/supportsInterface.js";
+
+/**
+ * Check if a contract supports the ERC20 interface.
+ * @param options - The transaction options.
+ * @returns A boolean indicating whether the contract supports the ERC20 interface.
+ * @extension ERC20
+ * @example
+ * ```ts
+ * import { isERC20 } from "thirdweb/extensions/erc20";
+ * const result = await isERC20({ contract });
+ * ```
+ */
+export function isERC20(options: BaseTransactionOptions) {
+  return supportsInterface({
+    contract: options.contract,
+    interfaceId: "0x36372b07",
+  });
+}