alguidelines/content/docs/BestPractices/begin-end/index.md
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---
title: "Begin-End - Compound Only"
tags: ["AL","Readability"]
categories: ["Best Practice"]
---
_Created by Microsoft, Described by waldo_
Only use begin..end to enclose [compound statements](https://docs.microsoft.com/en-us/cpp/c-language/compound-statement-c?view=msvc-170#:~:text=A%20compound%20statement%20%28also%20called%20a%20%22block%22%29%20typically,appear%20at%20the%20head%20of%20a%20compound%20statement.).
## Bad code
```AL
if FindSet() then begin
repeat
...
until next() = 0;
end;
```
## Good code
```AL
if FindSet() then
repeat
...
until next() = 0;
```
## Bad code
```AL
if IsAssemblyOutputLine then begin
TestField("Order Line No.", 0);
end;
```
## Good code
```AL
if IsAssemblyOutputLine then
TestField("Order Line No.", 0);
```
## Exception
```AL
// Except for this case
if X then begin
if Y then
//DO SOMETHING;
end else
(not X)
```