If a field named RESPONSE has no value, what is the output of calling @BLANK(RESPONSE)?

If a field named RESPONSE has no value, what is the output of calling @BLANK(RESPONSE)?

• A. false
• B. $null$
• C. 1
• D. undef

Answer: (A)

When calling the function @BLANK(RESPONSE) and the field named RESPONSE has no value, the function is designed to evaluate whether the input is a blank or undefined value. In the context of this function, when RESPONSE has no value, it is interpreted as being blank. As a result, the function returns false, indicating that the RESPONSE field is indeed blank. This aligns with the typical behavior of blank-checking functions in data analysis environments, where they are expected to return a boolean value—true or false—indicating the presence or absence of a value. Therefore, when RESPONSE has no content, @BLANK(RESPONSE) evaluates to false, confirming that the output is correctly identified in the choice provided.

When calling the function @BLANK(RESPONSE) and the field named RESPONSE has no value, the function is designed to evaluate whether the input is a blank or undefined value. In the context of this function, when RESPONSE has no value, it is interpreted as being blank. As a result, the function returns false, indicating that the RESPONSE field is indeed blank.

This aligns with the typical behavior of blank-checking functions in data analysis environments, where they are expected to return a boolean value—true or false—indicating the presence or absence of a value. Therefore, when RESPONSE has no content, @BLANK(RESPONSE) evaluates to false, confirming that the output is correctly identified in the choice provided.