Adding a key from a string variable (es6) when using distribution syntax

Question

I would like to know if there is a clean way to set the key value from a string variable when using distribution syntax in es6?

Something like the following:

let keyVar = 'newKey'
let newObject = {keyVar:{some:'json'},...oldObject}

But this leads to:

{"keyVar":{"some":"json"}, ... }

but not:

{"newKey":{"some":"json"}, ... }

Answer 1

You can use the computed properties :

const keyVar = 'newKey';
const newObject = { [keyVar]: { some: 'json' } };
console.log(newObject);

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