keypress calback (ctrl+enter)

ctrl_enter.js

(function() {
  var k_a = [];

  document.body.addEventListener('keydown', function(e) {
    var k = e.keyCode;

    // if esc
    if (k == 27) {
      // some act ...
    } else {

      if (k == 17) {
        k_a[0] = k;
        setTimeout(function() {
          k_a = [];
        }, 500);
      }

      // if ctrl+enter
      if (k == 13 && k_a[0] == 17) {
        // some act ...
        console.log('pressed ctrl+enter');
        k_a = [];
      }

    }

  });
})();