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► KB ► To/From Guides ► JavaScript

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Case Sensitivity (JavaScript and Delphi Prism Cross Reference Guide)

By Mike Prestwood

JavaScript versus Delphi Prism: A side by side comparison between JavaScript and Delphi Prism.

Language Basics

Language basics is kind of a catch all for absolute beginner stuff. The items (common names) I chose for language basics is a bit random and include items like case sensitivity, commenting, declaring variables, etc.

Case Sensitivity

[Other Languages]

Languages Focus

Case sensitiviy in this case is referring to commands and variable names. For example, are "printf" and "PrintF" equivalent? Are fullname and FullName equivalent? When you create commands, operations, methods, or variables should you worry about case?

JavaScript: Yes

JavaScript is case sensitive. Change the case, and it no longer works! Notice the "W" in "Write" is capitalized.

<script language=JavaScript> 
<!--
document.Write("Hello"); //Does not work! 
//--> 
</script>

Variable names are case sensitive.

Syntax Example:

This does work:

<script language=JavaScript> 
<!--
document.write("Hello"); 
//--> 
</script>

Delphi Prism: No

Prism is generally not case sensitive. Commands and variable names are not case sensitive.

Note: Prism (and Delphi for .Net) do not automatically match your typed case with the defined case as C# and VB.Net do within the Visual Studio Shell.

Syntax Example: 1 certification question.

The following demonstrates command and variable case insensitiviy.

var
 FullName: String;
begin
 fullname := 'Mike Prestwood';

 MessageBox.Show(fullNAME);
 MESSAGEBOX.SHOW(FULLNAME);
 messAGEbox.sHow(fullname);
end;