Strings

{# number the lesson by where it sits in this module: a lesson shared with another module must not link to that other module's number #} 5.1 Indexing Indexing Indexing and Printing Characters in a String Check Your Understanding Exercise: Tuna Sandwich
{# number the lesson by where it sits in this module: a lesson shared with another module must not link to that other module's number #} 5.2 Slicing Slicing Syntax of a Slice Slicing and Concatenating Groups of Characters Check Your Understanding Exercise: Replace a Letter
{# number the lesson by where it sits in this module: a lesson shared with another module must not link to that other module's number #} 5.3 Immutability Immutability What you CAN do What you CAN'T do String Immutability Check Your Understanding Exercise: Find the Error
{# number the lesson by where it sits in this module: a lesson shared with another module must not link to that other module's number #} 5.4 Strings and For Loops Strings and For Loops Using the Number of Characters Using the len Function Using the in Keyword String For Loop with Characters Check Your Understanding Exercise: Spelling Bee
{# number the lesson by where it sits in this module: a lesson shared with another module must not link to that other module's number #} 5.5 The in Keyword The in Keyword Finding a Letter Using Literals Finding Substrings Contains a Letter Check Your Understanding Exercise: Contains a Vowel
{# number the lesson by where it sits in this module: a lesson shared with another module must not link to that other module's number #} 5.6 String Methods String Methods upper and lower isupper and islower swapcase strip find Check Your Understanding Exercise: What's in a Name