function isWrapped(node) {
            var openParensToken = file.getPrevToken(file.getFirstNodeToken(node));
            var closingParensToken = file.getNextToken(file.getLastNodeToken(node));
            var closingTokenValue = closingParensToken ? closingParensToken.value : '';

            return openParensToken.value + closingTokenValue === '()';
        }
Disallows parentheses around arrow function expressions with a single parameter.

Type: `Boolean`

Value: `true`

Version: `ES6`

#### Example

```js
"disallowParenthesesAroundArrowParam": true
```

##### Valid

```js
[1, 2, 3].map(x => x * x);
// parentheses are always required for multiple parameters
[1, 2, 3].map((x, y, z) => x * x);
```

##### Invalid

```js
[1, 2, 3].map((x) => x * x);
```