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warmup10 min

Implement myFilter (Array.prototype.filter)

Implement myFilter(arr, callback)

Write myFilter(arr, callback) that returns a new array containing only the elements for which callback(item, index, array) returns truthy.

myFilter([1, 2, 3, 4], (n) => n % 2 === 0); // [2, 4]

Run your code to see results.

Stuck? This challenge exercises:

javascript.data-structures