`dataFrame.columns — clear()`

Description

The clear() method of the columns object clears all data values in the selected columns while preserving their column names.

Signature

dataFrame.columns(...columnNames).clear()

Scope: dataFrame
Family: columns
Returns: mutates

Argument

columnNames ( string[] ): The name of the columns from which to clear values.

Example

// clear the values of the 'revenue' and 'month' columns of the dataFrame
dataFrame.columns('revenue', 'month').clear();