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Javascript – How to give each element of an array of ojects a key

If I have an array that looks like:

arr =[ { id: ‘f794’,label: ‘Blue Bird’ } ]

how do I give the element of it a key so I get

arr =["myKey":{ id: 'f794',label: 'Blue Bird' } ]

I have tried several different ways, like

arr[0]= '"myKey"' + ":" + arr[0]

which gives me

[ "myKey:[object Object]" ]

How do I get arr =["myKey":{ id: 'f794',label: 'Blue Bird' } ]

Thanks

Tags:

2

Answers


  1. 0

    You can do :

    arr = arr.map((element) => {
   return ({"myKey" : element})
})

    With perhaps a specific key for each element depending on what you want to do with it.

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  2. 0

    Here is how:

    let arr = [{ id: 'f794',label: 'Blue Bird' }];

arr = arr.map( myKey => {
   return { myKey };
});

console.log( arr );

    Or the shorthand equivalent:

    let arr = [{ id: 'f794',label: 'Blue Bird' }];

arr = arr.map( myKey => ({ myKey }) );

console.log( arr );
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