How to use the Excel ISREF function

Summary

The Excel ISREF returns TRUE when a cell contains a reference and FALSE if not. You can use the ISREF function to check if a cell contains a valid reference.

Purpose

Test for a reference

Return value

A logical value (TRUE or FALSE)

Syntax

=ISREF (value)

Arguments

value - The value to check.

Usage notes

Use the ISREF function to check if value is a reference. ISREF will return TRUE when value is a reference and FALSE if not.

For example, =ISREF(A1) will return TRUE and =ISREF("apple") will return false.

ISREF is part of a group of functions called the IS functions that all return the logical values TRUE or FALSE.

Related functions

Excel ISBLANK Function

The Excel ISBLANK function returns TRUE when a cell contains is empty, and FALSE when a cell is not empty. For example, if A1 contains "apple", ISBLANK(A1) returns FALSE.

Excel ISERR Function

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Excel ISERROR Function

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Excel ISEVEN Function

The Excel ISEVEN function returns TRUE when a numeric value is even, and FALSE for odd numbers. ISEVEN will return the #VALUE error when a value is not numeric.

Excel ISFORMULA Function

The Excel ISFORMULA function returns TRUE when a cell contains a formula, and FALSE if not. When a cell contains a formula ISFORMULA will return TRUE regardless of the formula's output or error conditions.

Excel ISLOGICAL Function

The Excel ISLOGICAL function returns TRUE when a cell contains the logical values TRUE or FALSE, and returns FALSE for cells that contain any other value, including empty cells.

Excel ISNA Function

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Excel ISNONTEXT Function

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Excel ISNUMBER Function

The Excel ISNUMBER function returns TRUE when a cell contains a number, and FALSE if not. You can use ISNUMBER to check that a cell contains a numeric value, or that the result of another function is a number.

Excel ISODD Function

The Excel ISODD function returns TRUE when a numeric value is odd, and FALSE for even numbers. ISODD will return the #VALUE error when a value is not numeric.

Excel ISTEXT Function

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Good links

Microsoft ISREF function documentation

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