Section 9.20 Summary
This chapter introduced a lot of new ideas. The following summary may prove helpful in remembering what you learned.
- indexing (
- Access a single character in a string using its position (starting from 0). Example:
- length function (
- Returns the number of characters in a string. Example:
- for loop traversal (
- Traversing a string means accessing each character in the string, one at a time. For example, the following for loop:
for ix in 'Example': ...executes the body of the loop 7 times with different values of ix each time.
- slicing (
- A slice is a substring of a string. Example:
'bananas and cream'[3:6]evaluates to
'bananas and cream'[1:4]).
- string comparison (
>, <, >=, <=, ==, !=).
- in and not in operator (
inoperator tests whether one string is contained inside another string. Examples:
'heck' in "I'll be checking for you."evaluates to
'cheese' in "I'll be checking for you."evaluates to
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