use ternary in style react code example
Example: react style ternary operator
<img
src={this.state.photo}
alt=""
style={ isLoggedIn ? { display:'block'} : {display : 'none'} }
/>
// or
<img
src={this.state.photo}
alt=""
style={ { display: isLoggedIn ? 'block' : 'none' } }
/>