Conditionally add keys in JavaScript
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The document discusses using the spread operator to conditionally add keys to an object in a cleaner way than using if statements. It shows an example of using the spread operator to add a 'bio', 'books', 'email', or 'website' key to the aboutAuthor object based on their existence in the info object, providing a cleaner alternative to multiple if statements. The spread operator allows checking for a key and adding it to the object in one line, improving readability over separate conditional blocks.
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- 2. const aboutAuthor = {}; if (info.bio) { aboutAuthor.bio = info.bio; } if (info.books) { aboutAuthor.books = info.books; } if (info.email) { aboutAuthor.email = info.email; } if (info.website) { aboutAuthor.website = info.website; } ...and it keeps growing We usually define keys inside an object conditionally like how its shown below, But, Is there a way to make this cleaner?
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