JavaScript in 2022 new features
Name |
Description |
---|---|
Retrieves element at index supports positive and negative indexing |
|
Finds character at index, supports positive and negative indexing |
|
Matches any digit (0-9) in a regular expression pattern. |
|
Checks if object has its own specified property. |
|
error.cause |
Accesses the cause of an error in the error object. |
await import |
Awaits and imports a module dynamically in JavaScript code asynchronously. |
Private methods and fields |
Encapsulates data with restricted access using private methods and fields. |
Class field declarations |
Defines class properties directly without constructor using concise syntax. |
We will explore all the above methods along with their basic implementation with the help of examples.
ECMAScript 2021 (JS 2021/2022)
JavaScript in 2021/2022 continues to evolve, with ES2021/ES2022 bringing enhanced features like private class fields, promise improvements, and record data structures, boosting developer productivity and code quality.