Learn about VBA Function
VBA (Visual Basic for Applications) functions are used to perform operations in Microsoft Office applications like Excel, Access, and Word. These functions can be built-in or user-defined. Below is an overview of different types of VBA functions:
1. Built-in Functions
VBA has many built-in functions that cover a wide range of needs. Some of the commonly used categories of built-in functions include:
A. String Functions
> Len: Returns the length of a string
- Left: Returns a specified number of characters from the left side of a string
- Right: Returns a specified number of characters from the right side of a string
- Mid: Returns a substring starting at a specific position in a string
B. Mathematical Functions
Mathematical functions are useful for calculations, financial models, and data transformations:
- ABS: Returns the absolute value in a number:
- Sqr: return the square value
- Round: Rounds a number to a specified number of decimal places.
C. Date and Time Functions
Use this functions for operations that involves time –sensitive data, scheduling or data-based calculation:
- Date: Returns the correct date
- Now: Returns the current date and time.
- DateAdd: Adds a specified time interval to a date
- Date Diff: return the difference between two dates.
D. Worksheets function via VBA
You can access Excel’s powerful worksheet functions from VBA using
Application.WorksheetFunction. Here are a few examples:
- Vlookup : how we can use vlookup function in VBA.
- IIF: Return one of two value based on condition.
- Sum: this is worksheet function
These functions help automate and extend functionality in Excel VBA, supporting a wide range of applications.
Q and A
Q1. How do I write a function in VBA to calculate the square of a number?
Answer: You can create a simple function to return the square of a number like this:
Q2. How can I check if a cell is empty using VBA?
Answer: Use the IsEmpty function to check if a cell is empty.
Q3. How do I find the last row with data in a specific column in VBA?
Answer: You can use the End property to find the last used row in a column. Here’s an example for column A:
Q4. How can I format a date to “MM-DD-YYYY” format in VBA?
Answer: Use the Format function to convert the date format.
