Discussion on: Modern JavaScript, 10 things you should be using, starting today

[Randall]

Without the spread operator, you can do:

let firstHalf = [ 'one', 'two'];
let secondHalf = ['three', 'four'].concat(firstHalf);

I kind of prefer that way, since it doesn't involve extra syntax. But I'm used to using the spread operator now.

[samselfridge]

The fact that this results in an out-of-order array called 'secondHalf' that has ALL the values on it is still annoying...but that's OPs fault not yours @randall

[Alex Grad]

[].concat(firstHalf, secondHalf);

[samselfridge]

const fullArray = [].concat(firstHalf, secondHalf);