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' } }
/>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' } }
/>ternary operator react
render () {
return (
<div className="row">
{ //Check if message failed
(this.state.message === 'failed')
? <div> Something went wrong </div>
: <div> Everything in the world is fine </div>
}
</div>
);
}ternary react
render() {
const isLoggedIn = this.state.isLoggedIn;
return (
<div>
The user is <b>{isLoggedIn ? 'currently' : 'not'}</b> logged in.
</div>
);
}react if statement
render() {
const isLoggedIn = this.state.isLoggedIn;
return (
<div>
The user is <b>{isLoggedIn ? 'currently' : 'not'}</b> logged in. </div>
);
}react native conditional rendering
function Mailbox(props) {
const unreadMessages = props.unreadMessages;
return (
<div>
<h1>Hello!</h1>
{unreadMessages.length > 0 &&
<h2>
You have {unreadMessages.length} unread messages.
</h2>
}
</div>
);
}react ternary operator
function Mailbox(props) {
const unreadMessages = props.unreadMessages;
return (
<div>
<h1>Hello!</h1>
{unreadMessages.length > 0 &&
<h2>
You have {unreadMessages.length} unread messages.
</h2>
}
</div>
);
}
const messages = ['React', 'Re: React', 'Re:Re: React'];
ReactDOM.render(
<Mailbox unreadMessages={messages} />,
document.getElementById('root')
);Copyright © 2021 Codeinu
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