𝐂𝐥𝐚𝐬𝐬 𝟏𝟖: 𝐑𝐞𝐠𝐮𝐥𝐚𝐫 𝐄𝐱𝐩𝐫𝐞𝐬𝐬𝐢𝐨𝐧𝐬 (𝐑𝐞𝐠𝐞𝐱) 𝐏𝐚𝐫𝐭 𝟐- 𝐐𝐮𝐚𝐧𝐭𝐢𝐟𝐢𝐞𝐫𝐬 | 𝐏𝐚𝐭𝐭𝐞𝐫𝐧 | 𝐓𝐞𝐱𝐭 𝐀𝐧𝐚𝐥𝐲𝐭𝐢𝐜𝐬 | #python

𝐖𝐞𝐥𝐜𝐨𝐦𝐞 𝐭𝐨 𝐭𝐡𝐞 𝟏𝟖𝐭𝐡 𝐜𝐥𝐚𝐬𝐬 𝐨𝐟 𝐨𝐮𝐫 𝐜𝐨𝐦𝐩𝐫𝐞𝐡𝐞𝐧𝐬𝐢𝐯𝐞 𝐏𝐲𝐭𝐡𝐨𝐧 𝐜𝐨𝐮𝐫𝐬𝐞!

Welcome to Part 2 of our Regex series! In this video, we’ll explore the major quantifiers in regular expressions and how to use them to create powerful patterns. Quantifiers specify the number of times an element must occur for a match. Let's dive in!

𝐏𝐲𝐭𝐡𝐨𝐧 𝐁𝐨𝐨𝐤𝐥𝐞𝐭 𝐃𝐢𝐬𝐜𝐮𝐬𝐬𝐞𝐝 𝐢𝐧 𝐭𝐡𝐞 𝐕𝐢𝐝𝐞𝐨:
drive.google.com/file/d/1QSS_u3b8SbIs4qsKmYXJ6EIaa…

𝐀𝐬𝐬𝐢𝐠𝐧𝐦𝐞𝐧𝐭: drive.google.com/file/d/1hL7QnHOYzI3a2GCFR-t2oySqh…

Chapters:
0:00 - Introduction to Quantifiers
09:09 - + - One or More *- Zero or More
19:08 - {n} - Exactly n Times
24:00 - {n,m} - Between n and m Times {n,} ? - Zero or One
27:14 - At Least n Times
30:48 - * - Optional Preceding
42:18 - ? - Zero or One
45:33- 5 Practice Questions

𝐊𝐞𝐲 𝐏𝐨𝐢𝐧𝐭𝐬:
Introduction to Quantifiers

Brief overview of what quantifiers are in regex and why they are important.
- Zero or More

Matches the preceding element zero or more times.
Example: A* matches "", "A", "AA", "AAA".
- One or More

Matches the preceding element one or more times.
Example: A+ matches "A", "AA", "AAA"; does not match "".
? - Zero or One

Matches the preceding element zero or one time.
Example: A? matches "", "A".
{n} - Exactly n Times

Matches exactly n occurrences of the preceding element.
Example: A{3} matches "AAA"; does not match "AA", "AAAA".
{n,} - At Least n Times

Matches at least n occurrences of the preceding element.
Example: A{2,} matches "AA", "AAA", "AAAA"; does not match "A".
{n,m} - Between n and m Times

Matches between n and m occurrences of the preceding element.
Example: A{2,4} matches "AA", "AAA", "AAAA"; does not match "A", "AAAAA".


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