String Indexing and Slicing Quiz

A sequence of characters that can be accessed by indexing or slicing. In Python, a string is enclosed in single or double quotes.

Accessing a single character in a string using its position (index). Indexing starts at 0 for the first character. Negative indexing goes backward from the end.

Extracting a substring from a string by specifying a range of indices. The syntax is string[start:stop:step], where start is the index where the slice begins (inclusive), stop is the index where the slice ends (exclusive), and step is the stride between indices.

Use indexing when you want a specific character, such as getting the first letter of a word.

Use slicing when you want a portion of a string, such as extracting a word or phrase.

Retrieving a specific character from a string based on its position from the end. Negative indices start from -1 for the last character, -2 for the second to last, and so on.

Using negative indices for slicing. It allows you to extract substrings from the end of the string. The pattern is [::-1] to reverse the string.

It's a technique to transform the string into its reverse. Achieve it by using slicing with step -1.

A sequence of characters. Strings can be used to store text, such as words or sentences.

To extract a specific portion of the string. Its syntax is [start:end:step].

Returns the character at the specified position. Remember, Python starts counting characters from 0.

Returns the entire string from the start to the specified character, excluding the character at the end position.

Starts the slicing process from the specified character, and moves towards the last character.

It selects every second character starting from the second character. [1::2] is the syntax for this process.

This action reverses the order of characters in a string. Syntax: [::-1]

Returns the last character of a string. This is done by indexing with '-1'.

A function that replaces a specific part of a string with another string, resulting in a modified string.

A way to get a specific character or a portion of a string using its index. The index starts from 0 for the first character, 1 for the second, and so on. For example, "Hello"[0] will give you "H".

A method that retrieves a portion of a string based on starting and ending indices. It allows you to select a substring from a larger string.

A technique for creating a new string by combining parts of existing strings. It allows you to concatenate strings together.

A string operation that combines characters or substrings from different positions in a string to generate a new string. It's like shuffling the characters in a string.

A type of string slicing that extracts characters at specific intervals from a string. For example, a step of 2 will extract every second character.

A method that converts all characters in a string to lowercase. For example, 'HELLO' becomes 'hello'.

Checks if all characters in a string are alphabetical (a-z or A-Z).

Checks if all characters in a string are digits (0-9).

Checks if all characters in a string are lowercase.

Checks if all characters in a string are uppercase.

Checks if all characters in a string are whitespace (spaces, tabs, etc.).

Removes leading and trailing whitespace from a string.

Removes leading whitespace from a string.

Removes trailing whitespace from a string.

Finds the first occurrence of a substring within a string and returns its index (position). If not found, returns -1.

Finds the last occurrence of a substring within a string and returns its index. If not found, returns -1.

Similar to 'find()', but raises a ValueError if the substring is not found.

Similar to 'rfind()', but raises a ValueError if the substring is not found.

A powerful way to format strings using placeholders. Placeholders are replaced with values during the formatting process.

A newer method introduced in Python 3.6 for formatting strings. It uses curly braces {} to embed variables and expressions directly within the string.

Returns the length of a string. Counts the number of characters.