docs: Fix and standardize JSX code examples

docs/src/rules/jsx-quotes.md

@@ -37,9 +37,9 @@ This rule has a string option:
 
 Examples of **incorrect** code for this rule with the default `"prefer-double"` option:
 
-:::incorrect
+:::incorrect { "ecmaFeatures": { "jsx": true } }
 
-```xml
+```jsx
 /*eslint jsx-quotes: ["error", "prefer-double"]*/
 
 <a b='c' />
@@ -49,9 +49,9 @@ Examples of **incorrect** code for this rule with the default `"prefer-double"`
 
 Examples of **correct** code for this rule with the default `"prefer-double"` option:
 
-:::correct
+:::correct { "ecmaFeatures": { "jsx": true } }
 
-```xml
+```jsx
 /*eslint jsx-quotes: ["error", "prefer-double"]*/
 
 <a b="c" />
@@ -64,9 +64,9 @@ Examples of **correct** code for this rule with the default `"prefer-double"` op
 
 Examples of **incorrect** code for this rule with the `"prefer-single"` option:
 
-:::incorrect
+:::incorrect { "ecmaFeatures": { "jsx": true } }
 
-```xml
+```jsx
 /*eslint jsx-quotes: ["error", "prefer-single"]*/
 
 <a b="c" />
@@ -76,9 +76,9 @@ Examples of **incorrect** code for this rule with the `"prefer-single"` option:
 
 Examples of **correct** code for this rule with the `"prefer-single"` option:
 
-:::correct
+:::correct { "ecmaFeatures": { "jsx": true } }
 
-```xml
+```jsx
 /*eslint jsx-quotes: ["error", "prefer-single"]*/
 
 <a b='c' />

docs/src/rules/keyword-spacing.md

@@ -58,9 +58,9 @@ if (foo) {
 
 Examples of **correct** code for this rule with the default `{ "before": true }` option:
 
-::: correct
+::: correct { "ecmaFeatures": { "jsx": true } }
 
-```js
+```jsx
 /*eslint keyword-spacing: ["error", { "before": true }]*/
 /*eslint-env es6*/
 
@@ -173,9 +173,9 @@ if(foo) {
 
 Examples of **correct** code for this rule with the default `{ "after": true }` option:
 
-::: correct
+::: correct { "ecmaFeatures": { "jsx": true } }
 
-```js
+```jsx
 /*eslint keyword-spacing: ["error", { "after": true }]*/
 
 if (foo) {

docs/src/rules/no-extra-parens.md

@@ -214,9 +214,9 @@ foo ? bar : (baz || qux);
 
 Examples of **correct** code for this rule with the `all` and `{ "ignoreJSX": "all" }` options:
 
-::: correct
+::: correct { "ecmaFeatures": { "jsx": true } }
 
-```js
+```jsx
 /* eslint no-extra-parens: ["error", "all", { ignoreJSX: "all" }] */
 const Component = (<div />)
 const Component = (
@@ -230,9 +230,9 @@ const Component = (
 
 Examples of **incorrect** code for this rule with the `all` and `{ "ignoreJSX": "multi-line" }` options:
 
-::: incorrect
+::: incorrect { "ecmaFeatures": { "jsx": true } }
 
-```js
+```jsx
 /* eslint no-extra-parens: ["error", "all", { ignoreJSX: "multi-line" }] */
 const Component = (<div />)
 const Component = (<div><p /></div>)
@@ -242,9 +242,9 @@ const Component = (<div><p /></div>)
 
 Examples of **correct** code for this rule with the `all` and `{ "ignoreJSX": "multi-line" }` options:
 
-::: correct
+::: correct { "ecmaFeatures": { "jsx": true } }
 
-```js
+```jsx
 /* eslint no-extra-parens: ["error", "all", { ignoreJSX: "multi-line" }] */
 const Component = (
     <div>
@@ -262,9 +262,9 @@ const Component = (
 
 Examples of **incorrect** code for this rule with the `all` and `{ "ignoreJSX": "single-line" }` options:
 
-::: incorrect
+::: incorrect { "ecmaFeatures": { "jsx": true } }
 
-```js
+```jsx
 /* eslint no-extra-parens: ["error", "all", { ignoreJSX: "single-line" }] */
 const Component = (
     <div>
@@ -282,9 +282,9 @@ const Component = (
 
 Examples of **correct** code for this rule with the `all` and `{ "ignoreJSX": "single-line" }` options:
 
-::: correct
+::: correct { "ecmaFeatures": { "jsx": true } }
 
-```js
+```jsx
 /* eslint no-extra-parens: ["error", "all", { ignoreJSX: "single-line" }] */
 const Component = (<div />)
 const Component = (<div><p /></div>)

docs/src/rules/no-inline-comments.md

@@ -54,9 +54,9 @@ Comments inside the curly braces in JSX are allowed to be on the same line as th
 
 Examples of **incorrect** code for this rule:
 
-::: incorrect
+::: incorrect { "ecmaFeatures": { "jsx": true } }
 
-```js
+```jsx
 /*eslint no-inline-comments: "error"*/
 
 var foo = <div>{ /* On the same line with other code */ }<h1>Some heading</h1></div>;
@@ -74,9 +74,9 @@ var bar = (
 
 Examples of **correct** code for this rule:
 
-::: correct
+::: correct { "ecmaFeatures": { "jsx": true } }
 
-```js
+```jsx
 /*eslint no-inline-comments: "error"*/
 
 var foo = (

docs/src/rules/no-irregular-whitespace.md

@@ -197,9 +197,9 @@ function thing() {
 
 Examples of additional **correct** code for this rule with the `{ "skipJSXText": true }` option:
 
-::: correct
+::: correct { "ecmaFeatures": { "jsx": true } }
 
-```js
+```jsx
 /*eslint no-irregular-whitespace: ["error", { "skipJSXText": true }]*/
 /*eslint-env es6*/
 

docs/src/rules/no-unused-expressions.md

@@ -251,7 +251,7 @@ JSX is most-commonly used in the React ecosystem, where it is compiled to `React
 
 Examples of **incorrect** code for the `{ "enforceForJSX": true }` option:
 
-::: incorrect
+::: incorrect { "ecmaFeatures": { "jsx": true } }
 
 ```jsx
 /*eslint no-unused-expressions: ["error", { "enforceForJSX": true }]*/
@@ -265,7 +265,7 @@ Examples of **incorrect** code for the `{ "enforceForJSX": true }` option:
 
 Examples of **correct** code for the `{ "enforceForJSX": true }` option:
 
-::: correct
+::: correct { "ecmaFeatures": { "jsx": true } }
 
 ```jsx
 /*eslint no-unused-expressions: ["error", { "enforceForJSX": true }]*/