In Tensorflow.js, I can either use dataSync() or data() with await

Jorge Guerra Pires, PhD
IdeaCoding Lab
Published in
1 min readMar 27, 2024

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In TensorFlow.js, both dataSync() and data() with await serve similar purposes, but they have different characteristics. Let’s explore the differences:

  1. dataSync():
  • Synchronous method.
  • Blocks execution until the data is available.
  • Downloads the values from the tensor synchronously.
  • Useful when you need the data immediately and can afford to wait.
  • Faster in terms of execution time compared to data() with await.
  • Example usage:
  • const prediction = predict(curveX); const curveY = prediction.dataSync();
  1. data() with await:
  • Asynchronous method.
  • Returns a promise that resolves with the tensor data.
  • Does not block execution and allows other tasks to continue while waiting for the data.
  • Useful when you want to perform other operations concurrently.
  • Slightly slower due to the asynchronous nature.
  • Example usage:
  • { const prediction = predict(curveX); return await prediction.data(); }; “>
  • const getPrediction = async (curveX) => { const prediction = predict(curveX); return await prediction.data(); };

In summary, if you need immediate access to the data, use dataSync(). If you want to avoid blocking execution and prefer an asynchronous approach, use data() with await12. Keep in mind that the choice depends on your specific use case and performance requirements.

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IdeaCoding Lab
IdeaCoding Lab

Published in IdeaCoding Lab

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Jorge Guerra Pires, PhD
Jorge Guerra Pires, PhD

Written by Jorge Guerra Pires, PhD

Independent Researcher and writer at Amazon | “I want thinkers, not followers!” | More: https://linktr.ee/jorgeguerrapiresphd

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