keycode 체크하기

KeyCode

(function(global, doc){
    'use strict';

    var page = doc.querySelector('#page');
    page.classList.add('grid');

    doc.onkeydown = function(evt) {
        evt = evt || window.event;
        var key   = evt.keyCode || evt.which,
                shift = evt.shiftKey;
        // Shift + G(71)
        if (shift && key === 71) {
            page.classList.toggle('grid');
        }
    }

})(window, window.document);