Python Functions and String Manipulation

Questions and Answers

What does the function hello_name return when given the input 'Bob'?

Hello Bob!

What is the output of make_abba('Hi', 'Bye')?

HiByeByeHi

What HTML string is created by make_tags('i', 'Yay')?

Yay

What is the result of make_out_word('[[ ]]', 'word')?

[[word]] Signup and view all the answers

If the input is 'Hello', what does extra_end return?

lololo Signup and view all the answers

What does first_two('abcdefg') return?

ab Signup and view all the answers

What is the output when non_start('Hello', 'There') is called?

ellohere Signup and view all the answers

What does left2('Hello') yield?

lloHe Signup and view all the answers

Study Notes

Greeting Function

Function: hello_name(name) creates a personalized greeting.
Example: hello_name('Bob') → returns 'Hello Bob!'
The output format is always "Hello [name]!".

String Concatenation

Function: make_abba(a, b) concatenates two strings in the "abba" format.
Example: make_abba('Hi', 'Bye') → returns 'HiByeByeHi'.
The result is structured as a + b + b + a.

HTML Tag Creation

Function: make_tags(tag, word) generates an HTML string with specified tags.
Example: make_tags('i', 'Yay') → results in 'Yay'.
This function surrounds the word with the provided HTML tag.

String Insertion

Function: make_out_word(out, word) inserts a word into the middle of a given "out" string of length 4.
Example: make_out_word('[[]]', 'word') → returns '[[word]]'.
The word is placed between the first two and last two characters of the "out" string.

Last Two Characters Repetition

Function: extra_end(str) creates a string with three repetitions of the last two characters.
Example: extra_end('Hello') → returns 'lo lolo'.
This function only requires the input string to be at least 2 characters long.

First Two Characters Extraction

Function: first_two(str) returns the first two characters of a string.
Example: first_two('Hello') → results in 'He'.
If the string length is less than 2, it returns the string itself.

Character Omission in Concatenation

Function: non_start(a, b) concatenates two strings, omitting their first character.
Example: non_start('Hello', 'There') → results in 'ellohere'.
Both input strings must be at least length 1.

Left Rotation of Characters

Function: left2(str) rotates the string left by two characters.
Example: left2('Hello') → returns 'lloHe'.
The function requires the input string to be at least 2 characters long.

Description

This quiz covers essential Python functions related to string manipulation, including creating personalized greetings, string concatenation, and HTML tag generation. Test your understanding of how to implement these functions effectively with practical examples.