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tjjfvi/ObjectMap.js

Last active January 9, 2019 22:50
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Object.mapEntries, Object.mapValues, Object.mapKeys
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ObjectMap.js
Object.mapEntries = (obj, fn) =>
Object.assign({}, ...Object.entries(obj).map(e => fn(e, obj)).map(([k, v]) => ({ [k]: v })));
Object.mapValues = (obj, fn) =>
Object.mapEntries(obj, ([k, v]) => [k, fn(v, obj)]);
Object.mapKeys = (obj, fn) =>
Object.mapEntries(obj, ([k, v]) => [fn(k, obj), v]);
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