What is the diference beetwen an array with () or with [ ]?

Answer 1

https://stackoverflow.com/questions/931872/what-s-the-difference-between-array-and-while-declaring-a-javascript-ar

When you create an array using

var a = [];
You're telling the interpreter to create a new runtime array. No extra processing necessary at all. Done.

If you use:

var a = new Array();
You're telling the interpreter, I want to call the constructor "Array" and generate an object. It then looks up through your execution context to find the constructor to call, and calls it, creating your array.

Answer 2

Just a few weeks back ...

https://www.sololearn.com/Discuss/2875591/?ref=app