jkvim

  server {
        client_max_body_size 4G;
        listen  80; 
        server_name    localhost;
        root /path/to/fileServer;  # your folder to serve
        location / {
            types {
                application/octet-stream txt;  # specify which type force to download instead of open
            }
            auth_basic   "Restricted";  

jkvim

var ie = (function() {
  var v = 3
    , div = document.createElement( 'div' )
    , all = div.getElementsByTagName( 'i' )
  do
    div.innerHTML = '<!--[if gt IE ' + (++v) + ']><i></i><![endif]-->'
  while 
    (all[0])
  return v > 4 ? v : document.documentMode
}())

jkvim

// SyntaxError: foo has alreay been declared
const foo = (a, b) => {
    console.log(a, b);
};

const foo = (a) => {
    console.log(a);
};

foo(10, 100);