How do I use let and const in JavaScript?
An example of an AI chatbot conversation about using let and const in JavaScript.
What is the difference between let and const in JavaScript?
The main difference is that variables declared with let can be reassigned, while const variables cannot.
Can you give me an example of using let?
Sure! Here's an example:
let x = 10;
x = 20; // This is allowed
And how about const?
For const, once you assign a value, you cannot change it:
const y = 30;
y = 40; // This will throw an error
When should I use let instead of const?
Use let when you expect the variable's value to change, and const when you want to keep it constant.
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