JavaScript: Map an array of objects to a dictionary - DEV Community

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Tue Nov 16 2021 15:05:08 GMT+0000 (Coordinated Universal Time)

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let dictionary = data.reduce((a,x) => ({...a, [x.id]: x.country}), {})
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https://dev.to/devtronic/javascript-map-an-array-of-objects-to-a-dictionary-3f42