Merge pull request #331 from howardpen9/main-4

Update crc32.md content, adding Typescript example
ton-community · Aug 21, 2023 · 327ec1d · 327ec1d
2 parents 1dd4206 + 01cd49d
commit 327ec1d
Showing 1 changed file with 14 additions and 0 deletions.
diff --git a/docs/develop/data-formats/crc32.md b/docs/develop/data-formats/crc32.md
@@ -37,7 +37,21 @@ func main() {
 	binary.BigEndian.PutUint32(b_data, crc)
 	var res = hex.EncodeToString(b_data)
 	fmt.Println(res)
+}
+```
+
+### TypeScript
+```typescript
+import * as crc32 from 'crc-32';
+
+function calculateRequestOpcode_1(str: string): string {
+    return (BigInt(crc32.str(str)) & BigInt(0x7fffffff)).toString(16);
+}
 
+function calculateResponseOpcode_2(str: string): string {
+    const a = BigInt(crc32.str(str));
+    const b = BigInt(0x80000000);
+    return ((a | b) < 0 ? (a | b) + BigInt('4294967296') : a | b).toString(16);
 }
 ```