What will be the value of <code>result</code> after running this code? <pre><code>const person = { name: 'Dave', age: 40, hairColor: 'blue' };const result = Object.keys(person).map((x) => x.toUpperCase());</code></pre>

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What will be the value of <code>result</code> after running this code? <pre><code>const person = { name: &#x27;Dave&#x27;, age: 40, hairColor: &#x27;blue&#x27; };const result = Object.keys(person).map((x) =&gt; x.toUpperCase());</code></pre>

想查看完整答案?

What will be the value of <code>result</code> after running this code? <pre><code>const person = { name: 'Dave', age: 40, hairColor: 'blue' };const result = Object.keys(person).map((x) => x.toUpperCase());</code></pre>