Could you elaborate on this : Map and forEach don't mutate the original array,
As the example suggests, forEach does the operations on the Existing array.
Basically, the callback passed inside the forEach method is performing operations on the existing array and not forEach itself. forEach returns undefined. You can read more here: freecodecamp.org/news/4-main-diffe...
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Could you elaborate on this : Map and forEach don't mutate the original array,
As the example suggests, forEach does the operations on the Existing array.
Basically, the callback passed inside the forEach method is performing operations on the existing array and not forEach itself. forEach returns
undefined. You can read more here: freecodecamp.org/news/4-main-diffe...