ISTEXT()
Syntax. ISTEXT(value)
Definition. This function returns TRUE if the value argument is not an empty string. Otherwise, the function returns FALSE.
Arguments
value (required). The expression (a number, text, a formula without an equal sign, a logical value, an error value, a reference, or a name) that you want to check
Background. This function is one of the nine IS() functions that return a logical value depending on the argument. The argument of the IS() functions is not converted for evaluation. This means that a string consisting of a number is interpreted as a string (not as a number). The function also returns FALSE if the value argument refers to an empty cell. If the reference points to a cell containing a reference to an empty cell, ...
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