How to call a function which is outside the component in script function of component.

Please help in solving the below issue. How to call a function which is outside the component in script function of component. ex: demo.myFunction function should be called in component script, but script is not able to recognize demo variable. Where as demo.myFunction can be called in init function. grapesjs.plugins.add('my-plugin', function(editor, options) { var demo = { this.myFunction(id){ alert(this.id); } } var domComponents = editor.BlockManager; domComponents.add('my-block', { id: 'myComp', label: 'Custom', category: 'plugin', attributes: { class: 'fa fa-square-o' }, style: { padding...