Get the value of Monaco Editor

require.config({ paths: { 'vs': 'monaco-editor/min/vs' }});
require(['vs/editor/editor.main'], function() {
    window.editor = monaco.editor.create(document.getElementById('container'),                 {
        value: [
            'function x() {',
            '\tconsole.log("Hello world!");',
            '}'
        ].join('\n'),
        language: 'javascript'
    });
});

function save() {
   // get the value of the data
   var value = window.editor.getValue()
   saveValueSomewhere(value);     
}