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`console.log(tf.getBackend())` reports undefined before using any operations.

See original GitHub issue

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TensorFlow.js version

1.1.2

Browser version

chomre 74

Describe the problem or feature request

console.log(tf.getBackend()) reports undefined before using any operations.

Code to reproduce the bug / link to feature request

https://github.com/QuantumInformation/tensorflowjs-playground/blob/master/src/Playground.ts#L4

Issue Analytics

State:
Created 4 years ago
Comments:5 (1 by maintainers)

Top GitHub Comments

4reactions

dmnsgncommented, Mar 29, 2021

Waiting for await tf.ready() helps.

3reactions

nsthoratcommented, Jun 17, 2019

This is kind of expected because it’s technically the truth.

However, from the user’s point of view this definitely seems wrong. We can solve this by initializing the backend when the user calls that, just as calling tf.backend() would.

Technical details: Backends are initialized lazily. Only when you call an op do we find the best backend and initialize it. We do this for a few of the engine methods, e.g. tf.backend(), tf.findBackend(name), etc. We should probably do it for this one too.

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