alguidelines/content/docs/BestPractices/blank-lines/index.md

title	tags	categories
Avoid too many blank lines	AL Readability	Best Practice

Description

Avoid too many blank lines.

Example 1

Bad code

var
    UserSetup: Record "User Setup";
    IsEditable: Boolean;
    IsVisible: Boolean;


local procedure Initialize()
begin
    IsEditable := false;
    IsVisible := false;


    UserSetup.Get();
end;

Good code

var
    UserSetup: Record "User Setup";
    IsEditable: Boolean;
    IsVisible: Boolean;

local procedure Initialize()
begin
    IsEditable := false;
    IsVisible := false;

    UserSetup.Get();
end;

Example 2

Bad code

page 50000 "Blank Lines"
{
    PageType = List;
    ApplicationArea = All;
    UsageCategory = Administration;
    SourceTable = Customer;


    layout
    {
        area(Content)
        {
            repeater(GroupName)
            {
                ShowCaption = false;


                field(Name; Rec.Name)
                {
                    ApplicationArea = All;
                }
            }
        }
    }
}

Good code

page 50000 "Blank Lines"
{
    PageType = List;
    ApplicationArea = All;
    UsageCategory = Administration;
    SourceTable = Customer;

    layout
    {
        area(Content)
        {
            repeater(GroupName)
            {
                ShowCaption = false;

                field(Name; Rec.Name)
                {
                    ApplicationArea = All;
                }
            }
        }
    }
}

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 editor
• Remove Empty Lines from the Active Project : removes empty duplicate lines from the current project