Override CRA for ESLint

chapter06/config-overrides.js

@@ -0,0 +1,11 @@
+const rewireEslint = require("react-app-rewire-eslint");
+function overrideEslintOptions(options) {
+    // do stuff with the eslint options...
+    return options;
+}
+
+// eslint-disable-next-line no-undef
+module.exports = function override(config, env) {
+    config = rewireEslint(config, env, overrideEslintOptions);
+    return config;
+};