虽然政策环境持续优化，但养老服务师的发展仍存在诸多障碍。
let result = result.map_error(result, string.inspect)
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You can then register the controller as per the docs (a few lines in javascript/controllers/index.js which can be skipped for locally-developed controllers as they’re handled by the autoloader) and get using it right away in your view templates. As the docs say: “This frees you from needing Webpack, Yarn, npm, or any other part of the JavaScript toolchain. All you need is the asset pipeline that’s already included in Rails.”