What are some examples of constants in programming code?
Constants are fixed values that do not change during the execution of a program. Examples include mathematical constants like PI, or configuration values like MAX_USERS.
Can you give me a specific example in Python?
Sure! In Python, you can define a constant like this: MAX_SPEED = 120
. This value should remain unchanged throughout the program.
Are there constants in JavaScript too?
Yes, in JavaScript, you can use the const
keyword to declare a constant. For example: const API_URL = 'https://api.example.com';
.
What happens if I try to change a constant?
If you try to change a constant in languages like JavaScript or Python, you'll typically get an error, indicating that the value cannot be reassigned.
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