Convert[[0, 1], [2, 3], [4, 5]]to[0, 1, 2, 3, 4, 5]or[4, 5, 2, 3, 0, 1]
Solution 1:
var flattened = [[0, 1], [2, 3], [4, 5]].reduce(function(a, b) { return a.concat(b); }); // [0, 1, 2, 3, 4, 5]
var flattened = [[0, 1], [2, 3], [4, 5]].reduce(function(a, b) { return b.concat(a); }); // [4, 5, 2, 3, 0, 1]
See Array.prototype.reduce() for more examples.
Solution 2:
var flattened = [].concat.apply([], [[0, 1], [2, 3], [4, 5]]); // [0, 1, 2, 3, 4, 5]
var flattened = [].concat.apply([], [[0, 1], [2, 3], [4, 5]].reverse()); // [4, 5, 2, 3, 0, 1]
See Array.prototype.concat() for more examples.