"Python ord() Function in sort(): Check ASCII Values & Custom Sorting | Parameters: key & reverse"
🧠 *Python ord() & chr() Functions: Master ASCII Values & Custom Sorting | NeuralAICodeCraft*
Learn how computers represent characters! Master the `ord()` and `chr()` functions and use them for custom sorting.
📌 *What you'll learn:*
*ASCII BASICS*
▸ What is ASCII? (American Standard Code for Information Interchange)
▸ Why computers need numeric codes for characters
▸ ASCII table: 0-127 for standard characters
▸ Extended ASCII (128-255) and Unicode
*THE ord() FUNCTION*
▸ Syntax: `ord(character)` - Returns Unicode code point
▸ Works with any character (letters, digits, symbols)
▸ Returns integer value (0-1,114,111 for Unicode)
*THE chr() FUNCTION*
▸ Syntax: `chr(integer)` - Returns character from code point
▸ Inverse of ord()
▸ Works with any valid Unicode code point
*ASCII TABLE REFERENCE*
▸ Digits: 48-57 ('0' to '9')
▸ Uppercase: 65-90 ('A' to 'Z')
▸ Lowercase: 97-122 ('a' to 'z')
▸ Common symbols: space, punctuation
*SORTING WITH ord()*
▸ Using `key=ord` for custom sorting
▸ Sorting by ASCII values
▸ Case-insensitive sorting with `key=str.lower`
▸ Creating custom sort orders
📌 *Timestamps:*
0:00 - Introduction to ASCII
2:00 - ord() Function Basics
4:00 - chr() Function Basics
6:30 - ASCII Table Reference
9:00 - Sorting with ord() key
12:00 - Case-Insensitive Sorting
14:00 - Custom Sort Orders
16:00 - Practice Problems & Summary
💻 *Code from this video:* [GitHub link]
🎯 *Practice Challenge:*
1. Find ASCII values of all letters in your name
2. Sort a list of characters by ASCII value
3. Create a custom sort order using ord()
🔔 *Subscribe for more Python tutorials:* @NeuralAICodeCraft
#Python #ordFunction #chrFunction #ASCII #Unicode #CustomSort #NeuralAICodeCraft
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