Answers for "js what does .map do"

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map javascript

function each(collection, action) {
  if (Array.isArray(collection)) {
    for (var i = 0; i < collection.length; i++) {
      action(collection[i], i, collection);
    }
  } else {
    for (var key in collection) {
      action(collection[key], key, collection);
    }
  }
}
Posted by: Guest on February-22-2021

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