Learn how to properly handle async/await operations when mapping over arrays in JavaScript. The post explores common mistakes with async operations and introduces three methods to correctly map over promises: using a for...of loop for sequential processing, Promise.all for parallel execution, and the npm package p-map to control concurrency. Improve your understanding and effectiveness in dealing with async operations to prevent bottlenecks and potential memory issues.
Table of contents
The ProblemThe for…of Loop SolutionThe Promise.all SolutionThe Cleaner Solution with p-mapConclusionSort: