How Can I Add Dynamic Classes to Static Class Names in JSX?

Adding Dynamic Classes to Manual Class Names

In the context of Babel's JavaScript-based JSX, you may encounter the need to append a dynamic class to a list of existing classes. Here's how you can achieve this:

Two Primary Approaches:

Traditional JavaScript:

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

This method combines regular string concatenation to append the dynamic class name.

String Template Version:

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

Here, backticks are used to create a string template that allows JavaScript expression interpolation.

JSX Specific Considerations:

In JSX, Curly brackets enclose JavaScript code, so anything within them will be executed. However, a caveat arises when combining JSX strings with curly brackets for attributes.

Alternatives:

Alternatively, you can utilize Babel's transform-class-properties plugin to enable class property assignments in the form:

class MyComponent {
  classes = 'wrapper searchDiv ' + this.state.something;
}

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