How to deal with eslint problem: react/ jsx - wrap - multilines : Parentheses around JSX should be on separate lines

When addressing ESLint issues, the react/jsx-wrap-multilines rule is commonly used to ensure that JSX elements maintain clear and consistent formatting when written across multiple lines. This rule requires that parentheses be placed on separate lines when JSX elements span multiple lines. I will outline the steps to resolve this issue, along with relevant examples.

Step 1: Understanding the Error Message

First, accurately interpret the error message reported by ESLint. Typically, when violating the react/jsx-wrap-multilines rule, ESLint displays the following error:

shell
error  JSX not properly wrapped in parentheses  react/jsx-wrap-multilines

Step 2: Inspect Existing Code

Identify the specific sections of your code that violate this rule. For example, your code might resemble:

jsx
const MyComponent = () => (
  <div>
    <p>Hello World</p>
  </div>
);

Step 3: Modify the Code

According to the react/jsx-wrap-multilines rule, ensure parentheses are positioned on separate lines when JSX elements span multiple lines. The correct format should be:

jsx
const MyComponent = () => (
  <div>
    <p>Hello World</p>
  </div>
);

If your code is written as:

jsx
const MyComponent = () => <div>
    <p>Hello World</p>
  </div>;

modify it to:

jsx
const MyComponent = () => (
  <div>
    <p>Hello World</p>
  </div>
);

Step 4: Re-run ESLint

After modifying the code, re-run ESLint to confirm no additional errors exist. If the change is correct, the error should be resolved.

Step 5: Configure ESLint Rules (if needed)

If this rule conflicts with your team's coding style or requirements, adjust or disable it in the .eslintrc file. For example:

json
{
  "rules": {
    "react/jsx-wrap-multilines": "off"
  }
}

Disabling this rule is generally discouraged, as it enhances code readability and consistency.

Example

Incorrect format:

jsx
const greeting = <Greeting firstName="Ben" lastName="Hector">
                   <p>Welcome</p>
                 </Greeting>;

Correct format:

jsx
const greeting = (
  <Greeting firstName="Ben" lastName="Hector">
    <p>Welcome</p>
  </Greeting>
);

By following these steps, you can effectively address and adhere to the react/jsx-wrap-multilines rule in ESLint, thereby improving code cleanliness and consistency.