{ "presets": [ [ "@babel/preset-env", { "targets": { "node": "6.10", "browsers": "> 0.25%, not dead" } } ], [ "@babel/preset-react", { "pragma": "dom", // default pragma is React.createElement (only in classic runtime) "pragmaFrag": "DomFrag", // default is React.Fragment (only in classic runtime) "throwIfNamespace": false, // defaults to true "runtime": "classic" // defaults to classic // "importSource": "custom-jsx-library" // defaults to react (only in automatic runtime) } ] ], "plugins": [ "@babel/plugin-syntax-top-level-await", "@babel/plugin-proposal-object-rest-spread", "@babel/plugin-syntax-jsx" ] }