Check if value from one dataframe exists in another dataframe

Question

I have 2 dataframes.

Df1 = pd.DataFrame({\'name\': [\'Marc\', \'Jake\', \'Sam\', \'Brad\']
Df2 = pd.DataFrame({\'IDs\': [\'Jake\', \'John\', \'Marc\', \'Tony         


        

Answer 1

This should do it:

Df1 = Df1.assign(result=Df1['name'].isin(Df2['IDs']).astype(int))