How add class for number in array?

Question

You have an array [1,0,1,0]. Using expression print the given array on the page, and each element should be placed in a div. If the element is 1, then the div must have a class of white, if 0 is black.

 this.state = {
  array2: [1, 0, 1, 0]
};

}

{this.state.array2.map(elem => {
    return <div>{elem}</div>
 })}

Amit Chauhan · Accepted Answer · 2020-02-03 06:34:14Z

1

you can use ternary operator for this

{this.state.array2.map(elem => {
    return <div className={elem === 0 ? "black" : "white"}>{elem}</div>
})}

answered Feb 3, 2020 at 6:34

Amit Chauhan

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