includes

The includes() method determines whether an array includes a certain value among its entries, returning true or false as appropriate.

const numbers = [1, 'two', 3, 'four'];
numbers.includes(1);
// => true
numbers.includes('one');
// => false

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References

• https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global\_Objects/Array/includes

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Backlinks

• Array Analysis