EDIT: let and const are supported by all modern browsers and are part of the ECMAScript 2015 (ES6) specification. Basically if you don’t need to support anything below IE11, let and const are safe to use nowadays. On IE11 there’s a small quirk with let when used with for loops, the variable is not bound … Read more
Well you this wont work in all browsers just IE 8. Microsoft implemented the ability to determine which (right/left) key was pressed. Here is a link http://msdn.microsoft.com/en-us/library/ms534630(VS.85).aspx I also found this wonder article about keypress, keyup, keydown event in browsers. http://unixpapa.com/js/key.html $(‘#someelement’).bind(‘click’, function(event){ if(event.ctrlKey) { if (event.ctrlLeft) { console.log(‘ctrl-left’); } else { console.log(‘ctrl-right’); } } … Read more