Filter Array Method | JavaScript Tutorial

Published: 26 January 2023
on channel: Ride With Bankim

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The filter() method creates a shallow copy of a portion of a given array, filtered down to just the elements from the given array that pass the test implemented by the provided function.

Parameters
callbackFn
A function to execute for each element in the array. It should return a truthy to keep the element in the resulting array, and a falsy value otherwise.

The function is called with the following arguments:

element
The current element is being processed in the array.

index
The index of the current element being processed in the array.

array
The array filter() was called upon.

Return value
A shallow copy of a portion of the given array, filtered down to just the elements from the given array that pass the test implemented by the provided function. If no elements pass the test, an empty array will be returned.

Link: https://developer.mozilla.org/en-US/d...

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