How to Dynamically Add Classes to React Elements Using Babel?

Dynamic Class Addition in Babel

When working with dynamic content, it often becomes necessary to add additional classes to elements. In React applications utilizing Babel, this can be achieved through the className attribute.

Question:

How can a dynamic class be appended to a list of existing classes? For instance, a React component with a className of "wrapper searchDiv" needs to dynamically update to "wrapper searchDiv {this.state.something}".

Answer:

There are two approaches to achieve this:

1. Traditional JavaScript Method:

Add the additional class within the className attribute using JavaScript, like so:

className={'wrapper searchDiv ' + this.state.something}

2. String Template Method:

Use backticks to create a string template, which allows for cleaner and more concise code:

className={`wrapper searchDiv ${this.state.something}`}

In both methods, the curly brackets contain JavaScript code, allowing for the modification of strings and the addition of dynamic values. However, it's important to note that combining JSX strings and curly brackets within attributes is not supported.

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