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Home Web Front-end CSS Tutorial How to Dynamically Change Tailwind CSS Classes in React Using Template Literals?

How to Dynamically Change Tailwind CSS Classes in React Using Template Literals?

Dec 15, 2024 am 11:40 AM

How to Dynamically Change Tailwind CSS Classes in React Using Template Literals?

Tailwind CSS: Dynamic Class Changes with Template Literals

When working with conditional styling in React, leveraging template literals within Tailwind CSS is a powerful technique to dynamically modify classes. Let's dive into how this can be effectively implemented.

The Issue

Some developers encounter issues when using template literals to conditionally change classes in Tailwind CSS. For instance, code similar to the following might not work as expected:

const closeNav = () => {
  setClick(!click);
};

<div className={`absolute inset-0 ${click ? "translate-x-0" : "-translate-x-full" } transform z-400 h-screen w-1/4 bg-blue-300`}></div>

The Solution

The correct way to apply template literals for dynamic class changes is as follows:

<div className={click ? "absolute inset-0 translate-x-0 transform z-400 h-screen w-1/4 bg-blue-300" : "absolute inset-0 -translate-x-full transform z-400 h-screen w-1/4 bg-blue-300"}></div>

Alternatively, without template literals:

<div className={"absolute inset-0 " + (click ? "translate-x-0" : "-translate-x-full") + " transform z-400 h-screen w-1/4 bg-blue-300"}></div>

Considerations

Avoid using string concatenation to create class names, as this can hinder Tailwind's optimizations. Instead, opt for selecting complete class names or using class selection techniques like classNames, clsx, or Tailwind-specific solutions like twin.macro, twind, and xwind.

Other Options

Conditional styling can also be achieved using third-party libraries like classnames or clsx, or Tailwind-specific solutions like twin.macro, twind, and xwind.

Further Reading

For more information, refer to the following resources:

  • [React.js conditionally applying class names](https://stackoverflow.com/questions/39584486/conditionally-applying-class-names-in-react-js)
  • [How to dynamically add a class to manual class names?](https://www.sitepoint.com/dynamically-add-classes-javascript/)
  • [Correct way to handle conditional styling in React](https://stackoverflow.com/questions/44916340/correct-way-to-handle-conditional-styling-in-react)
  • [Embedding Expressions in JSX](https://reactjs.org/docs/jsx-in-depth.html#embedding-expressions-in-jsx)
  • [Template literals - MDN](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Template_literals)
  • [Optimizing for Production - Writing purgeable HTML - Tailwind CSS](https://tailwindcss.com/docs/optimizing-for-production#writing-purgeable-html)

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