When not to use Blank Lines
Categories:
Description
Do not use blank lines:
- at the beginning or end of any functions (after
begin
and beforeend
) - inside multiline expression
- after blank lines
Example 1
Bad code
procedure MATRIX_OnDrillDown(MATRIX_ColumnOrdinal: Integer);
begin
SetupDrillDownCol(MATRIX_ColumnOrdinal);
DrillDown(false, ValueType);
end;
Good code
procedure MATRIX_OnDrillDown(MATRIX_ColumnOrdinal: Integer);
begin
SetupDrillDownCol(MATRIX_ColumnOrdinal);
DrillDown(false, ValueType);
end;
Example 2
Bad code
if NameIsValid and
Name2IsValid
then
Good code
if NameIsValid and
Name2IsValid
then
Example 3
Bad code
var
GLSetup: Record "General Ledger Setup";
GLSetupRead: Boolean;
local procedure GetGLSetup()
begin
if not GLSetupRead then
GLSetup.Get();
GLSetupRead := true;
OnAfterGetGLSetup(GLSetup);
end;
[IntegrationEvent(false, false)]
local procedure OnAfterGetGLSetup(var GLSetup: Record "General Ledger Setup")
begin
end;
Good code
var
GLSetup: Record "General Ledger Setup";
GLSetupRead: Boolean;
local procedure GetGLSetup()
begin
if not GLSetupRead then
GLSetup.Get();
GLSetupRead := true;
OnAfterGetGLSetup(GLSetup);
end;
[IntegrationEvent(false, false)]
local procedure OnAfterGetGLSetup(var GLSetup: Record "General Ledger Setup")
begin
end;
Tips
The AZ AL Dev Tools/AL Code Outline extension adds two new commands to Visual Studio Code to remove empty duplicate lines.
Remove Empty Lines from the Active Editor
: removes empty duplicate lines from the current editorRemove Empty Lines from the Active Project
: removes empty duplicate lines from the current project
Last modified May 6, 2022: Added Tips section with link to VS Code extension (0b32513b)
by Frédéric Vercaemst