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')?
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If the input is 'Hello', what does extra_end return?
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What does first_two('abcdefg') return?
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What is the output when non_start('Hello', 'There') is called?
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What does left2('Hello') yield?
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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.
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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.