javascript-essential-training-2832077 | Linkedin Learning course : JavaScript Essential Training | Runtime Evironment library

*Pseudo-code* Array.prototype.map(function(ea){return backpackArticle}) will simply create a new array and include whatever you return in each iteration.

You can achieve the same thing in other ways, but, as was already said, with more code. Really, the 'significance' in this case is simply achieving the intended result with less code.

I think in your example, it's to explicitly create a new array and then explicitly append each backpackArticle to the using a forEach. You can skip the creating of the new array with map.