What is the data type of array in js

An array in JavaScript is an object type that is an ordered collection of values ​​that can dynamically change size and contain any data type, including other arrays, objects, and primitive values.

#What data type is an array in JavaScript?

Arrays in JavaScript are a type of object.

Specifically:

• An array is an ordered collection of stored values, just like a list or container.
• Each item is stored under an index, starting from 0.
• The size (length) of an array is dynamic and can change as elements are added or removed.
• Arrays can contain any data type, including other arrays, objects, primitive values ​​(such as strings, numbers, Boolean values), etc.

Key points:

• Arrays are mutable and elements can be added or removed at any time.
• Array elements are accessed and modified using square brackets ([ ]).
• Arrays have built-in methods for performing common operations (such as push, pop, shift, map).
• Although arrays are objects, they are usually treated as independent data structures because it provides fast access to items.

Example:

<code class="javascript">const myArray = [1, 2, 3, "hello", true];
// myArray 是一个包含各种数据类型的数组。</code>

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