60 lines
1.2 KiB
Markdown
60 lines
1.2 KiB
Markdown
---
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title: "When not to use Blank Lines"
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tags: ["AL","Readability"]
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categories: ["Best Practice"]
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---
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Do not use blank lines:
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- at the beginning or end of any functions (after `begin` and before `end`)
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- inside multiline expressions
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## Example 1
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### Bad code
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```al
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procedure MATRIX_OnDrillDown(MATRIX_ColumnOrdinal: Integer);
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begin
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SetupDrillDownCol(MATRIX_ColumnOrdinal);
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DrillDown(false, ValueType);
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end;
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```
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### Good code
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```al
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procedure MATRIX_OnDrillDown(MATRIX_ColumnOrdinal: Integer);
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begin
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SetupDrillDownCol(MATRIX_ColumnOrdinal);
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DrillDown(false, ValueType);
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end;
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```
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## Example 2
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### Bad code
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```al
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if NameIsValid and
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Name2IsValid
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then
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```
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### Good code
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```al
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if NameIsValid and
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Name2IsValid
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then
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```
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## Tips
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The [AZ AL Dev Tools/AL Code Outline](https://marketplace.visualstudio.com/items?itemName=andrzejzwierzchowski.al-code-outline) extension adds two new commands to Visual Studio Code to remove empty duplicate lines.
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- `Remove Empty Lines from the Active Editor` : removes empty duplicate lines from the current editor
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- `Remove Empty Lines from the Active Project` : removes empty duplicate lines from the current project
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