Require linebreaks in curly braces in JSX attributes and expressions …

…to be consistent (react/jsx-curly-newline)

Fixes: #1372

CHANGELOG.md

@@ -24,6 +24,7 @@ This project adheres to [Semantic Versioning](https://semver.org/).
 - Disallow template literals when placeholders or tagged template features are not used. ([quotes](https://eslint.org/docs/rules/quotes)) [#838](https://github.com/standard/standard/issues/838) [eslint-config-standard/#151](https://github.com/standard/eslint-config-standard/pull/151) [1%]
 - Disallow lexical declarations in case/default clauses ([no-case-declarations](https://eslint.org/docs/rules/no-case-declarations)) [#1211](https://github.com/standard/standard/issues/1211) [eslint-config-standard/#137](https://github.com/standard/eslint-config-standard/pull/137) [1%]
 - Require the first JSX property to be placed on a new line if the JSX tag takes up multiple lines and there are multiple properties ([react/jsx-first-prop-new-line](https://github.com/yannickcr/eslint-plugin-react/blob/master/docs/rules/jsx-first-prop-new-line.md)) [#696](https://github.com/standard/standard/issues/696) [1%]
+- Require linebreaks in curly braces in JSX attributes and expressions to be consistent ([react/jsx-curly-newline](https://github.com/yannickcr/eslint-plugin-react/blob/master/docs/rules/jsx-curly-newline.md)) [#1372](https://github.com/standard/standard/issues/1372) [1%]
 - Require JSX attributes and logical expressions to be indented correctly ([react/jsx-indent](https://github.com/yannickcr/eslint-plugin-react/blob/master/docs/rules/jsx-indent.md)) [#1370](https://github.com/standard/standard/issues/1370) [1%]
 - Require JSX event handler names to follow conventions ([react/jsx-handler-names](https://github.com/yannickcr/eslint-plugin-react/blob/master/docs/rules/jsx-handler-names.md)) [#1371](https://github.com/standard/standard/issues/1371) [1%]
 - Require JSX closing bracket to be aligned with the opening tag ([react/jsx-closing-bracket-location](https://eslint.org/docs/rules/react/jsx-closing-bracket-location)) [#1361](https://github.com/standard/standard/issues/1361) [1%]

eslintrc.json

@@ -37,6 +37,7 @@
 
     "react/jsx-closing-bracket-location": ["error", "tag-aligned"],
     "react/jsx-closing-tag-location": "error",
+    "react/jsx-curly-newline": ["error", { "multiline": "consistent", "singleline": "consistent" }],
     "react/jsx-first-prop-new-line": ["error", "multiline-multiprop"],
     "react/jsx-handler-names": "error",
     "react/jsx-indent": ["error", 2, { "checkAttributes": true, "indentLogicalExpressions": true }],