String evaluation on ctrl+enter

live-coding.js

var keypressed = Bacon.fromEvent(document.getElementById('text-editor'), 'keypress');

var evaluatedString = keypressed
                        .filter(function (event) { return event.ctrlKey && event.charCode === 10; })
                        .map(function (event) { return getSelection(event.target.value, event.target.selectionStart, event.target.selectionEnd); })
                        .filter(function (value) { return !!value.trim(); }).log();