What is the difference between a variable and a constant?
An example of an AI chatbot conversation about the difference between variables and constants in programming.
What is the difference between a variable and a constant?
A variable is a storage location that can hold different values over time, while a constant is a fixed value that cannot change.
Can you give me an example of each?
Sure! In Python, a variable can be defined as x = 5, and you can change x later. A constant can be defined as PI = 3.14, and it should remain the same.
Why would I use a constant instead of a variable?
Using constants helps prevent accidental changes to values that should remain unchanged, improving code reliability.
Are there any programming languages that don't support constants?
Most modern programming languages support constants, but some older or simpler languages may not have a specific constant type.
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