/Javascript/React/How to add a key in a react element

How to add a key in a react element

    var lists = this.state.lists.map(function(list, index) {
        return(
            <div key={index}>
                <div key={list.name} id={list.name}>
                    <h2 key={"header"+list.name}>{list.name}</h2>
                    <ListForm update={lst.updateSaved} name={list.name}/>
                </div>
            </div>
        )
    });

Source: stackoverflow.com

Similar codes

0 vote252 views1 answer
Create loop to specific length react
Javascript React
24 votes269 views6 answers
Proptypes react
Javascript React
1 vote244 views2 answers
Get syntethicbaseevent and parameter in react
Javascript React
0 vote288 views1 answer
React router redirect with query params
Javascript React
0 vote240 views1 answer
Close all function of react in vscode mac
Javascript React
0 vote237 views1 answer
React type div onClick
Javascript React
2 votes240 views2 answers
Fullcalendar react add event duration
Javascript React
0 vote242 views1 answer
Using redux on react extension
Javascript React
4 votes297 views2 answers
Concurrently node react
Javascript React
1 vote255 views1 answer
Put two buttons in a row in react native
Javascript React