x = [[[1, 2]], [[2, 3]], [[3, 4]]]
x.flatMap(x=>x)
output: [[1,2], [2,3], [3,4]]
x.map(x=>x).flat()
output: [[1,2], [2,3], [3,4]]
x.map(x=>x).flat(Infinity)
output: [1, 2, 2, 3, 3, 4]
window.addEventListener("keydown", function(e) {
// space and arrow keys
if([32, 37, 38, 39, 40].indexOf(e.keyCode) > -1) {
e.preventDefault();
}
}, false);
I've checked a few browsers on desktop and it seems to be no problem at all there, with the added benefit that most (or all?) modern browsers let's you easily change the font size that is used with Ctrl +/- (or Cmd) on almost all sites. For instance, I have the fonts scaled to 125% here on HN since I find them a bit small normally. (You can do that on mobile as well, but I'm not sure if that works on a per-site basis like how it works on desktop.)