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The Array.isArray() method in JavaScript is used to determine whether a value is an array. This method returns a Boolean value indicating whether the value is an array or not.

Here is an example of how the Array.isArray() method works:

const array1 = [1, 2, 3, 4, 5];

const result = Array.isArray(array1);

// the result will be: true

In the code example above, we first declare an array called array1 that contains the numbers 1 through 5. We then use the Array.isArray() method to check if the array1 variable is an array. The Array.isArray() method takes a single argument, which is the value to check. In this case, we pass in the array1 variable as the argument.

As a result of calling the Array.isArray() method, the result variable will be set to true, because the array1 variable is indeed an array. If the value we were checking was not an array, the result variable would be set to false.