Please Note: This article is written for users of the following Microsoft Excel versions: 2007, 2010, 2013, and 2016. If you are using an earlier version (Excel 2003 or earlier), this tip may not work for you. For a version of this tip written specifically for earlier versions of Excel, click here: Exiting a For ... Next Loop Early.

Exiting a For ... Next Loop Early

by Allen Wyatt
(last updated September 7, 2015)

2

If you use For ... Next loops in your macro programming (who doesn't?), then you should know that they can take a great deal of time. You can minimize this by only checking what you need. For instance, consider the following code, which checks an array to see if a value exists. If it doesn't, then it adds the value to the end of the array. If it does, then the value is not added.

AddIt = False
For J = 1 to NumEntries
    If NumValues(J) = ToAdd Then AddIt = True
Next J
If AddIt Then
    NumEntries = NumEntries + 1
    NumValues(NumEntries) = ToAdd
End If

This works great, but if the array gets large, you can end up going through the For ... Next loop quite a few times. Now consider the following code, which accomplishes the same task, but dumps out of the For ... Next loop early if a match is detected.

AddIt = False
For J = 1 to NumEntries
    If NumValues(J) = ToAdd Then
        AddIt = True
        Exit For
    End If
Next J
If AddIt Then
    NumEntries = NumEntries + 1
    NumValues(NumEntries) = ToAdd
End If

Now if a match is found early on in the loop, all the rest of the iterations are skipped because the Exit For statement is encountered and the loop is basically exited right away. The result is a faster running macro.

Note:

If you would like to know how to use the macros described on this page (or on any other page on the ExcelTips sites), I've prepared a special page that includes helpful information. Click here to open that special page in a new browser tab.

ExcelTips is your source for cost-effective Microsoft Excel training. This tip (11335) applies to Microsoft Excel 2007, 2010, 2013, and 2016. You can find a version of this tip for the older menu interface of Excel here: Exiting a For ... Next Loop Early.

Author Bio

Allen Wyatt

With more than 50 non-fiction books and numerous magazine articles to his credit, Allen Wyatt is an internationally recognized author. He is president of Sharon Parq Associates, a computer and publishing services company. ...

MORE FROM ALLEN

Default Cell Movement when Deleting

Delete a cell or a range of cells, and Excel needs to figure out how to rearrange the void left by the deletion. You can ...

Discover More

Filtering Columns for Unique Values

Given a long list of names, part numbers, or what-have-you, you may need to determine the unique values within the list. ...

Discover More

Applying a Docs Style

Want a quick way to format the text in your documents? Consider applying styles to modify the entire look of individual ...

Discover More

Professional Development Guidance! Four world-class developers offer start-to-finish guidance for building powerful, robust, and secure applications with Excel. The authors show how to consistently make the right design decisions and make the most of Excel's powerful features. Check out Professional Excel Development today!

More ExcelTips (ribbon)

Separating Evens and Odds

If you have a series of values in a column, you might have a need to separate the values into even values and odd values. ...

Discover More

Determining the Day of the Month

Want to figure out the day of the month represented by a particular date? You can use the Day function in VBA to get the ...

Discover More

Inserting the Current Time with Seconds

If you need to insert the current time, with seconds, then you'll need the macro discussed in this tip. It's easy to use ...

Discover More
Subscribe

FREE SERVICE: Get tips like this every week in ExcelTips, a free productivity newsletter. Enter your address and click "Subscribe."

View most recent newsletter.

Comments

If you would like to add an image to your comment (not an avatar, but an image to help in making the point of your comment), include the characters [{fig}] in your comment text. You’ll be prompted to upload your image when you submit the comment. Maximum image size is 6Mpixels. Images larger than 600px wide or 1000px tall will be reduced. Up to three images may be included in a comment. All images are subject to review. Commenting privileges may be curtailed if inappropriate images are posted.

What is 8 + 1?

2014-12-01 07:21:49

Doug

Just a note to say that the Addit conditions are reversed in the code. It should be initialized to TRUE and set to FALSE if the value is detected in the loop.


2014-12-01 07:12:18

balthamossa2b

While it's not a good programming practice, I prefer going in and out of loops by using GoTo.

It's useful when you have a "loop of loops", or:

For i = 1 to n
For j = 1 to m
[stuff]
If (whatever) Then GoTo skiploop
Next j

For j = 1 to o
[otherstuff]
If (whatever) Then GoTo skiploop
Next j
skiploop:
Next i



The proper way to do this would be with embedded Ifs or with Booleans used as checks (as in this tip's example), but it's usually too bothersome.

And for big loops it can add too many extra operations that have an effect in the execution time (I'm thinking bruteforcing Project Euler-like stuff; in small loops of, say, <10k iterations you won't see the effect).

Yay for laziness.



This Site

Got a version of Excel that uses the ribbon interface (Excel 2007 or later)? This site is for you! If you use an earlier version of Excel, visit our ExcelTips site focusing on the menu interface.

Newest Tips
Subscribe

FREE SERVICE: Get tips like this every week in ExcelTips, a free productivity newsletter. Enter your address and click "Subscribe."

(Your e-mail address is not shared with anyone, ever.)

View the most recent newsletter.