Events on keybord keys

keys-pressed.js

var keys = {};

$(document).keydown(function (e) {
    keys[e.which] = true;

    showThemeSelector(e);
});

$(document).keyup(function (e) {
    delete keys[e.which];

    showThemeSelector(e);
});

function showThemeSelector(e) {
    var key = String.fromCharCode(e.keyCode);

    for (var i in keys) {
        if (!keys.hasOwnProperty(i)) continue;
        console.log(i, key);
    }

    // if the user pressed 'R + T':
    if (keys[82] == true && keys[84] == true) {
        $('.themeSelect').toggleClass('active');
    }

    // if the user pressed 'ctrl + t':
    if ((e.metaKey || e.ctrlKey) && e.which == 84) {
     $('.themeSelect').toggleClass('active');
    }
}