How Can I Dynamically Add Classes to React Components?

Dynamically Enhancing Class Names in React

In React, it's often necessary to dynamically add a class to a set of predefined class names. Babel provides a convenient solution for this scenario.

Achieving Dynamic Class Addition

To add a dynamic class to a list of regular classes, you can utilize the following approach in JSX:

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

This code fragment concatenates the string literal "wrapper searchDiv" with the value of this.state.something to create the className. Alternatively, you can employ a string template:

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

Both of these solutions rely on the fact that in JSX, anything enclosed in curly brackets is executed as JavaScript. As such, you have the flexibility to dynamically generate class names using variables or state values.

Important Note

While it's tempting to combine JSX strings and curly brackets for attributes, it's important to avoid this practice. Only JavaScript is permitted within curly brackets in JSX.

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