return FALSE; $r = well_tag_thread__update(array('id' => $id), $update); return $r; } function well_tag_thread_find($tagid, $page, $pagesize) { $arr = well_tag_thread__find(array('tagid' => $tagid), array('id' => -1), $page, $pagesize); return $arr; } function well_tag_thread_find_by_tid($tid, $page, $pagesize) { $arr = well_tag_thread__find(array('tid' => $tid), array(), $page, $pagesize); return $arr; } ?>javascript - Optional-Chaining does not work in create-react-app - Stack Overflow

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    In a create-react-app project, I am using @babel/plugin-proposal-optional-chaining in my `.babelrc

    However, I have this error: Module parse failed: Unexpected token (22:16) You may need an appropriate loader to handle this file type.

    This is all my babel dependencies:

    {
  "dependencies": {
    "@babel/core": "^7.9.0",
    "@babel/node": "^7.8.7",
    "@babel/plugin-external-helpers": "^7.8.3",
    "@babel/plugin-proposal-class-properties": "^7.8.3",
    "@babel/plugin-proposal-decorators": "^7.8.3",
    "@babel/plugin-proposal-json-strings": "^7.8.3",
    "@babel/plugin-proposal-object-rest-spread": "^7.9.5",
    "@babel/plugin-proposal-optional-chaining": "^7.9.0",
    "@babel/plugin-syntax-dynamic-import": "^7.8.3",
    "@babel/plugin-syntax-import-meta": "^7.8.3",
    "@babel/plugin-transform-async-to-generator": "^7.8.3",
    "@babel/plugin-transform-modules-monjs": "^7.9.0",
    "@babel/plugin-transform-react-constant-elements": "^7.9.0",
    "@babel/plugin-transform-react-inline-elements": "^7.9.0",
    "@babel/plugin-transform-runtime": "^7.9.0",
    "@babel/polyfill": "^7.8.7",
    "babel-plugin-add-module-exports": "^1.0.2",
    "babel-plugin-array-includes": "^2.0.3",
    "babel-plugin-inline-react-svg": "^1.1.1"
  }
}
    • node v14.0.0
    • npm 6.14.4
    • react-scripts 2.1.8

    What else do I need in order to get this to work?

    In a create-react-app project, I am using @babel/plugin-proposal-optional-chaining in my `.babelrc

    However, I have this error: Module parse failed: Unexpected token (22:16) You may need an appropriate loader to handle this file type.

    This is all my babel dependencies:

    {
  "dependencies": {
    "@babel/core": "^7.9.0",
    "@babel/node": "^7.8.7",
    "@babel/plugin-external-helpers": "^7.8.3",
    "@babel/plugin-proposal-class-properties": "^7.8.3",
    "@babel/plugin-proposal-decorators": "^7.8.3",
    "@babel/plugin-proposal-json-strings": "^7.8.3",
    "@babel/plugin-proposal-object-rest-spread": "^7.9.5",
    "@babel/plugin-proposal-optional-chaining": "^7.9.0",
    "@babel/plugin-syntax-dynamic-import": "^7.8.3",
    "@babel/plugin-syntax-import-meta": "^7.8.3",
    "@babel/plugin-transform-async-to-generator": "^7.8.3",
    "@babel/plugin-transform-modules-monjs": "^7.9.0",
    "@babel/plugin-transform-react-constant-elements": "^7.9.0",
    "@babel/plugin-transform-react-inline-elements": "^7.9.0",
    "@babel/plugin-transform-runtime": "^7.9.0",
    "@babel/polyfill": "^7.8.7",
    "babel-plugin-add-module-exports": "^1.0.2",
    "babel-plugin-array-includes": "^2.0.3",
    "babel-plugin-inline-react-svg": "^1.1.1"
  }
}
    • node v14.0.0
    • npm 6.14.4
    • react-scripts 2.1.8

    What else do I need in order to get this to work?

    • javascript
    • reactjs
    • babeljs
    • react-scripts
    Share Improve this question edited Apr 26, 2020 at 12:31 Dennis Vash 54k12 gold badges117 silver badges132 bronze badges asked Apr 26, 2020 at 11:47 Dimitri KopriwaDimitri Kopriwa 14.4k33 gold badges116 silver badges232 bronze badges
    Add a ment  | 

    1 Answer 1

    Reset to default 6

    You only need to make sure you have installed react-scripts 3.3.0+ version as it already es with optional chaining built-in:

    const obj = { a: `Hello` };

// Hello World
const App = () => {
  return (
    <>
      {obj?.a}
      {obj?.b ?? ` World`}
    </>
  );
};

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