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Booleans and Operators
What is a Boolean?
A Boolean is a data type that can be either True or False. It's often the result of comparisons or logic.
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Comparison Operators
Compare two values using these operators:
| Operator | Name | Example |
|---|---|---|
== | Equal to | 5 == 5 |
!= | Not equal | 5 != 3 |
> | Greater than | 5 > 3 |
< | Less than | 2 < 1 |
>= | Greater or equal | 5 >= 5 |
<= | Less or equal | 4 <= 3 |
Logical Operators
Logical operators let you combine multiple Boolean expressions. Try the examples below and predict whether they will evaluate to True or False. Then run the code to check your answers.
and– True only if both conditions are Trueor– True if at least one condition is Truenot– Reverses the Boolean value
🔹 Try this:
Predict the result of each line, then run the code to check if you're right:
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Truthy and Falsy Values
Some values evaluate to False:
0,"",[],None→ Falsy- Any non-empty or non-zero value → Truthy
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Other Operators
These are helpful in comparisons:
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Practice Exercise
🔹 What will each of these print?
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Practical Use Cases of Booleans
Booleans are used in real-world logic checks, conditionals, and flows:
Voting Eligibility
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Login Check
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Membership
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Input Validation
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Game Over Flag
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