Computer Science EOPA Complete Practice Exam 2025

The AscW() function is used specifically to return the Unicode value of a character. Unlike its counterpart, Asc(), which gives you the ASCII value, AscW() accommodates a wider range of characters by utilizing Unicode, which includes characters from various languages and special symbols. When you pass a character to AscW(), it converts that character into its corresponding integer value in the Unicode character set. This is particularly useful in modern applications where internationalization is important, as Unicode allows for the representation of characters from virtually all writing systems.

In contrast, functionality related to the other options does not align with what AscW() provides. For example, if one were to inquire about ASCII values, the Asc() function would be the appropriate choice, while retrieving a character from an integer input would relate to functions like Chr(). Additionally, obtaining the length of a string would be managed by functions such as Len(), which is unrelated to character encoding. Thus, the significance of the AscW() function lies in its ability to handle Unicode efficiently.