JavaScript - extract date object values from array

In this article, we would like to show you how to extract date object values from an array in JavaScript.

Quick solution:

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const resultArray = myArray.filter(element => element instanceof Date);

Since there is no 'date' type in JavaScript and dates are 'object' type, we check if each value in the given array is an instance of Date using instanceof operator.

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const isDate = (value) => value instanceof Date;

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// Usage example:

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const array = [new Date(), '24 JAN 2022', '2022-01-24', '2022-01-24 17:30:30'];

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console.log(array.filter(isDate));

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// Output:

// [ 2022-01-24T17:43:37.893Z ]

Note:
The code returns only the Date object created with Date() constructor.

1. JavaScript - test if variable is date type

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1. instanceof - JavaScript | MDN

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