What do Option Strict and Option Explicit do?

Question

I saw this post:

Typos… Just use option strict and explicit please.. during one software development project, which I was on as a consultant, they w

Answer 1

Find details here: http://support.microsoft.com/kb/311329

The Option Explicit statement

By default, the Visual Basic .NET or Visual Basic compiler enforces explicit variable declaration, which requires that you declare every variable before you use it. To change this default behavior, see the Change the Default Project Values section.

The Option Strict statement

By default, the Visual Basic .NET or Visual Basic compiler does not enforce strict data typing. To change this default behavior, see the Change the Default Project Values section.