FAQ: Modifying DataFrames - Reviewing Lambda Function


#1

This community-built FAQ covers the “Reviewing Lambda Function” exercise from the lesson “Modifying DataFrames”.

Paths and Courses
This exercise can be found in the following Codecademy content:

Data Science

Data Analysis with Pandas

FAQs on the exercise Reviewing Lambda Function

Join the Discussion. Help a fellow learner on their journey.

Ask or answer a question about this exercise by clicking reply (reply) below!

Agree with a comment or answer? Like (like) to up-vote the contribution!

Need broader help or resources? Head here.

Looking for motivation to keep learning? Join our wider discussions.

Learn more about how to use this guide.

Found a bug? Report it!

Have a question about your account or billing? Reach out to our customer support team!

None of the above? Find out where to ask other questions here!


#2

To pin point the last character, why not use x[-1] instead of x[len(x)-1]?

Are there situations where x[-1] will not work?

Thanks


#3
mylambda = lambda x: x[0]+x[-1]
print(mylambda('Hello World'))

certainly produces the same results
Hd

I don’t know why they added the complicated
x[len(x)-1]


#4

What would the two lines of code be if we wanted to print the first and last number of an integer instead of the first and last letter? I’ve not had any luck in coming up with the solution on my own.