Fall 2024 - P2

Big Idea 3 .1
.1.1 Python Variables .1.2 Javascript Variables .1.3 Popcorn Hacks .1.4 Homework Hacks
.2
.2.1 Integers .2.2 Floats .2.3 Strings .2.4 Lists .2.5 Tuples .2.6 Dictionaries .2.7 Sets .2.8 Boolean .2.9 None
.3
.3.1 Mathematical Expressions .3.2 Mathamatical Operations .3.3 Popcorn Hacks .3.4 Homework Hacks
.4
.4.1 Javascript Strings .4.2 Python Strings .4.3 Popcorn Strings Hacks .4.4 Homework Strings Hacks
.5
.5.1 Boolean Values in Python .5.2 Boolean Values In Java .5.3 Homework Hacks .5.4 Popcorn Hacks
.6
.6.1 If/Else Statements .6.2 Comparison Operators + Homework Hack
.7
.7.1 Nested Conditionals .7.2 Homework Hack
.8
.8.1 For Loops .8.2 While_Do While .8.3 Index Loops .8.4 Continue_Break
.10
10.1 List Operations 10.2 Pseudocode 10.3 List Functions 10.4 List Input

3.2 None Data Abstraction

Student led teaching on Abstraction. Teaching how various data types can use abstraction for copmutational efficiency.

• • 1 min read

CSP Big Idea 3

None - 3.2.9

print("x = None")
x = None
# Nones are data abstractions because they represent a nonexistent value for better handling of unspecified data.

print("Output of x:", x)
print("So is x true, or is x false?")
if x:
  print("Do you think None is True?")
elif x is False:
  print ("Do you think None is False?")
else:
  print("None is not True, or False, None is just None...")

x = None
Output of x: None
So is x true, or is x false?
None is not True, or False, None is just None...

Javascript Version

var x = null;
console.log("Output of X", x)

if (x) {
    console.log("Do you think null True?");
} else if (x == false) {
    console.log("Do you think null is False");
} else {
    console.log("Null is not True or False, null is just null...");
}