Adding dynamic class name to list of hard coded classes in React

Question

I have an element with a list of classes e.g.

<div class="class1 class2 class3">Content</div>

And I want to add this react variable to the list of classes:

{this.state.active ? ' is-active': null}

How would I go about adding it into the list, something like this?

<div class={{this.state.active ? ' is-active': null} + " class1 class2 class3"}>Content</div>

I'm having no luck at all... I'm also kinda new to react :/

Alberto Perez · Accepted Answer · 2019-10-08 09:04:48Z

5

you can do the following using template strings:

<div className={`${this.state.active ? 'is-active': ''} class1 class2 class3`}>Content</div>

answered Oct 8, 2019 at 9:04

Alberto Perez

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Comments

Abal · Accepted Answer · 2019-10-08 09:04:32Z

0

this will work but it's not very good coding

you can do this like this

<div class={{this.state.active ? " class1 class2 class3 is-active": "class1 class2 class3"}}>Content</div>

answered Oct 8, 2019 at 9:04

Abal

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Is there anyway that is better practice then?

yeah the answer down is better coding