New ES2021 features you may have missed

TC39, the organization responsible for standardizing ECMAScript (JavaScript), has established a process where new features undergo four proposal stages before being included in annual releases, with several features expected in mid-2021. These include logical assignment operators (&&=, ||=, ??=) for assigning default values, the String.replaceAll method for replacing all occurrences of a pattern in a string, numeric separators for enhancing the readability of large numbers, the Promise.any method that resolves the first successful promise, and WeakRef for creating weak references that are subject to garbage collection. These features are supported by recent versions of major browsers, and developers can use Babel to enable their use in older browsers. To implement these updates, developers can configure Babel with specific presets and polyfills, allowing new JavaScript features to be compatible with a wider range of environments. Additionally, tools like LogRocket offer enhanced debugging capabilities by providing insights into JavaScript errors through user interaction tracking and detailed logging, facilitating easier error resolution and improved digital experiences.