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Mert Özen's blog posts on software development, backend, frontend, and DevOps.

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Angular 31 JavaScript Basics 19 JavaScript Intermediate 18 JavaScript Advanced 16 TypeScript Basics 0 TypeScript Intermediate 4 TypeScript Advanced 12

3 posts found #promise

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Frontend PART 05

Advanced JavaScript Async Patterns: The Promise.all Family, Cancellation, Retry and Timeouts

We look at the differences between Promise.all, allSettled, any and race, ES2024's Promise.withResolvers, ES2025's Promise.try, supporting AbortSignal in your own functions, retry, timeouts and concurrency limits.

3 Nov 2026 9 min 27

Frontend PART 10

JavaScript async/await: Readable Async Code, Error Handling and Waiting in Parallel

We see why async functions always return promises, how await waits without freezing the page, catching errors with try/catch, sequential versus parallel waiting, the await-in-a-loop trap and top-level await.

3 Nov 2026 8 min 26

Frontend PART 09

JavaScript Promises: Three States, the then/catch/finally Chain and Error Propagation

We build the three promise states with a restaurant buzzer analogy and work through new Promise, then/catch/finally, chaining, error propagation, Promise.all and race, and wrapping callbacks.

3 Nov 2026 8 min 27