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JS Basics : Redeclare, Reinitialize, and Print Statement
var:
Re-declare: Possible.
Re-initialize: Possible.

let:
Re-declare: Not possible.
Re-initialize: Possible. We can update the value.

const:
Re-declare: Not possible.
Re-initialize: Not possible. Once assigned a value, it cannot be changed.
Note: The datatype cannot be changed once assigned. For example, if a string is assigned, it cannot be changed to a number, boolean, or object. However, if a reference type like an object or array is assigned, the values inside the object or array can be modified.

Printing statements are mainly used for debugging purposes. They help check whether a value is displayed or not. Most commonly used method is console.log()

Additionally, the prompt() method can be used to get a dynamic value from the user.

By understanding and using var, let, and const appropriately, and utilising printing statements effectively, you can write more efficient and error-free JavaScript code.

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