Codehs Strings Functions Flashcards

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Questions and Answers

The function returns the initials of the name represented by `first` and `last`.

first + '.' + last + '.'

The function returns the first and last letter of the input string.

string[0] + string[-1]

The function returns the word without the first letter.

word[1:]

The function returns the original string with the character at `index` replaced by a dash (-).

string[:index] + '-' + string[index + 1:] Signup and view all the answers

The function returns the original string with the character at `index` replaced by `string2`.

string[:index] + string2 + string[index + 1:] Signup and view all the answers

One of the two lines in the function `bad` will cause an error.

True (A) Signup and view all the answers

The function returns the length of the input name.

len(name) Signup and view all the answers

The function spells the word with a for loop.

for letter in word: print(letter + '!') Signup and view all the answers

The function returns the count of occurrences of `character` in `word`.

counter Signup and view all the answers

The function checks if the word contains any vowels.

True (A) Signup and view all the answers

The function returns the input string capitalized and with an exclamation point.

string.upper() + '!' Signup and view all the answers

The function checks if the `letter` exists in the `name`.

name.find(letter) != -1 Signup and view all the answers

The function removes all instances of `letter` from `word`.

while True: index = word.find(letter) if index == -1: return word word = word[:index] + word[index+1:] Signup and view all the answers

The function removes all instances of `letter` from `word`, where `letter` can be multiple characters.

while True: index = word.find(letter) if index == -1: return word word = word[:index] + word[index+len(letter):] Signup and view all the answers

What is the source site mentioned?

<a href="https://eplenas.neocities.org/estynia/codehs">https://eplenas.neocities.org/estynia/codehs</a> Signup and view all the answers

Study Notes

Initials

Function initials(first, last) constructs the initials of a name by concatenating the first character of first and last followed by periods.

Sandwich Sandwiches

Function sandwich(string) returns a new string formed by concatenating the first character and the last character of the input string.

If You're not First, You're Last

Function end_of_word(word) returns a substring that excludes the first letter of the input word.

Part 1, Replace a Letter

Function replace_at_index(string, index) replaces the character at a specified index with a dash (-) and returns the modified string.

Part 2, Replace a Letter

Function replace_at_index(string, index, string2) replaces the character at a specified index with a new character provided as string2.

Find the Error

An error occurs in an attempt to modify a string's first letter; using my_string = "H" incorrectly reassigns my_string instead of modifying it.

Length of User's Name

Function name_length(name) returns the length of the name string using the len() function.

Spelling Bee

Function spell_word() iterates through each letter of a specified word and prints it followed by an exclamation mark.

Keeping Count

Function count_occurrences(word, character) counts how many times a specified character appears in a given word, using a counter variable.

Contains a Vowel

Function contains_vowel(word) checks if there are any vowels in the word by comparing each letter against a predefined list of vowels.

ENTHUSIASM!

Function add_enthusiasm(string) capitalizes the input string and appends an exclamation mark at the end.

What's in a Name?

Function name_contains(name, letter) determines if a specified letter exists in the given name string, returning True or False.

Part 1, Remove All From String

Function remove_all_from_string(word, letter) removes all instances of a specified letter from the given word by continuously searching for it.

Part 2, Remove All From String

Function remove_all_from_string(word, letter) removes all occurrences of a specified substring from the word, adjusting indices accordingly during the search process.

Secret Word Function

Function find_secret_word(message) constructs a hidden word by concatenating uppercase letters from a provided message string.

Source Site

A resource is available at source site link for further assistance and coding examples.

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Description

This quiz focuses on string manipulation functions as part of the Codehs curriculum. You'll explore how to create initials from first and last names, as well as concatenate the first and last letters of a given string. Test your understanding with these functional examples!