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JavaScript Array Const

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ECMAScript 2015 (ES6)

in 2015, JavaScript introduced an important new keyword: const.

It has become a common practice to declare arrays using const:

Example

const cars = ["Saab", "Volvo", "BMW"];
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Cannot be Reassigned

An array declared with const cannot be reassigned:

Example

const cars = ["Saab", "Volvo", "BMW"];
cars = ["Toyota", "Volvo", "Audi"];    // ERROR
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