Array filter() method in JavaScript
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Array filter() method in JavaScript
The `filter()` method in JavaScript is used to create a new array containing elements that pass a specified test implemented by a provided function. It does not modify the original array but returns a new array with elements that meet the criteria defined in the callback function.
Key points about `filter()`:
It takes a callback function as an argument, which is executed for each element in the array.
The callback function should return `true` or `false` for each element.
Elements that return `true` are included in the new array, while those that return `false` are excluded.
It is commonly used for tasks like filtering out unwanted values, creating subsets of data, or working with arrays in a functional programming style.
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