- *`let`:*
- Allows you to reassign values.
- Can be declared without an initial value.
- Good for variables that might change.
- *`const`:*
- Does not allow reassignment after the initial value is set.
- Must be assigned a value when declared.
- Ideal for variables that should remain constant.
In simple terms:
- let:
- You can change the value after declaring it.
- You can declare it without giving it a value initially.
- const:
- Once you give it a value, you can't change it.
- You must give it a value when you declare it.
So, use `let` if you might change the value later, and use `const` if you don't plan on changing it.