Pandas: Data Manipulation - isnull() function

isnull() function

The isnull() function is used to detect missing values for an array-like object.

This function takes a scalar or array-like object and indicates whether values are missing (NaN in numeric arrays, None or NaN in object arrays, NaT in datetimelike).




Name Description Type Required / Optional
obj Object to check for null or missing values. scalar or array-like Required

Returns: bool or array-like of bool
For scalar input, returns a scalar boolean. For array input, returns an array of boolean indicating whether each corresponding element is missing.


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