Multiple assignment in javascript? What does [a,b,c] = [1, 2, 3]; mean?

Question

For a project a developer sent us a .js file with code similar to this:

var myList = [1,2,3];
var a,b,c;

[a,b,c] = myList;

It works in Ope

Answer 1

This is destructuring assignment, available in Javascript 1.7 (mozilla) and some newer browsers: http://www.robertnyman.com/javascript/javascript-1.7.html#destructuring-assignment