14 lines
372 B
Markdown
14 lines
372 B
Markdown
### invertKeyValues
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Inverts the key-value pairs of an object, without mutating it.
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Use `Object.keys()` and `Array.reduce()` to invert the key-value pairs of an object.
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```js
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const invertKeyValues = obj => Object.keys(obj).reduce((acc,key) => { acc[obj[key]] = key; return acc;},{});
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```
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```js
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invertKeyValues({name:'John', age: 20}) // { 20: 'age', John: 'name' }
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```
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