@monaco-editor/react/lib/es/utils/index.js

Monaco Editor for React - use the monaco-editor in any React application without needing to use webpack (or rollup/parcel/etc) configuration files / plugins

function noop() {}

function getOrCreateModel(monaco, value, language, path) {
  return getModel(monaco, path) || createModel(monaco, value, language, path);
}

function getModel(monaco, path) {
  return monaco.editor.getModel(createModelUri(monaco, path));
}

function createModel(monaco, value, language, path) {
  return monaco.editor.createModel(value, language, path && createModelUri(monaco, path));
}

function createModelUri(monaco, path) {
  return monaco.Uri.parse(path);
}

function isUndefined(input) {
  return input === undefined;
}

export { getOrCreateModel, isUndefined, noop };