Why JavaScript's .then() Still Has a Place Alongside Async/Await in 2026

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Despite async/await becoming the dominant pattern for handling asynchronous JavaScript, the older .then() method retains practical advantages in specific scenarios. Developers can use .then() to fire background tasks — such as analytics tracking — without blocking the main execution flow, something await cannot do without restructuring the code. It also enables cleaner functional programming pipelines by chaining pure functions without the need for intermediate variables. In environments lacking top-level await support, such as legacy CommonJS Node.js files, .then() offers a simpler alternative to wrapping code in an async IIFE. Experts suggest using async/await for most workflows while reserving .then() for non-blocking tasks, one-liners, and pipeline-style data transformations.

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