Improve Your JavaScript Codebase with the Latest ECMAScript Features (ES2024, ES2023, ...)

Learn how the latest JavaScript features can help you improve your codebase.

Group data by keys using JavaScript Array Grouping (Object.groupBy)
Find Items from the end of the JavaScript Array using at, findLast and findLastIndex
Perform Set Operations using JavaScript Set Methods
Make JavaScript computations lazy using Iterator Helpers
Simplify array immutable changes with the new array.with method
Simplify JavaScript code with Logical, Assignment and Optional Operators
Manually settle a promise using Promise.withResolvers
Manage Asynchronous JavaScript code with any, allSettled new Promise Methods
Make JavaScript Numbers more readable using Numeric Separators
Improve Application-wide Error Handling rethrowing JavaScript Error with the Error Cause