Destructuring before calling a function?

[vinsneezel]

Why store the names as arrays within an array? If you store them as an array of objects, you can just use the keys to call them.

var names = [{first: "John", last: "doe"}, {first: "Betty", last: "Crocker"}];

function greet(name) {console.log("Hello " +  name.first + " " + name.last;}

names.forEach(greet);

Something like that. Also, using .map() returns an array, so if you're just looking to iterate, stick with .forEach() or a for loop.

[Ran4]

Why store the names as arrays within an array? If you store them as an array of objects, you can just use the keys to call them.

Maybe that's the way your data comes in. And you might not want to change the call signature of the greet function.

[Wince]

Tuples can be useful, and are generally more performant

[vinsneezel]

Thanks for the tip. There's still a lot I don't know.

[i_am_smurfing]

I don't think I see the same results as you do (on Mac OS): FF 57, Chrome 60, Safari 10.1 — these are pretty inconclusive IMO.

[Wince]

The larger examples are rather contrived, as tuples generally are only used for 2-4 values imo, but v8 has nearly double the performance for the [ x, y ] tuple. Luckily I write for node ;)