Web Reference: Two such gems are the optional chaining operator (`?.`) and the nullish coalescing operator (`??`). These operators, introduced in recent ECMAScript versions, elegantly address common problems in JavaScript development: dealing with potentially missing values and providing sensible defaults. Aug 20, 2024 · But what happens if the user object doesn’t have an address property or the address object doesn’t have a street property? You’d get an error! Enter Optional Chaining! This operator (?.) lets you access nested properties safely, returning undefined if any part of the chain is missing. For example: Sep 17, 2025 · Master optional chaining and nullish coalescing in JavaScript. Learn to prevent runtime errors, set safe defaults, and avoid common pitfalls
YouTube Excerpt: We will take a dive into two ECMAscript 2020 features coming soon to Javascript:
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