warmup8 min

Implement myForEach (Array.prototype.forEach)

Implement `myForEach(arr, callback)`

Write myForEach(arr, callback) that calls callback(item, index, array) once per element, purely for side effects. Unlike myMap, it doesn't build a new array — it returns undefined.

myForEach([1, 2, 3], (n) => console.log(n));

Your code

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javascript.data-structures

Implement myForEach (Array.prototype.forEach)

Implement myForEach(arr, callback)

Implement myForEach (Array.prototype.forEach)

Implement myForEach(arr, callback)

Implement `myForEach(arr, callback)`

Implement `myForEach(arr, callback)`