How does JS-SDK call for a separate signature

Hello, brothers
I now have a requirement, and the scenario looks like this
I generated a TX through the Golang SDK
Sign the TX through jS-SDK
Send the signature to the Golang SDK
The Golang SDK does node broadcasting

The whole process should be successful in theory, because I am not very familiar with JS-SDK and not very familiar with the syntax. Could you please tell me how JS-SDK can sign TX with the private key? Which method should be called?

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@hanssv.chain

Sorry I don’t know anything about JS-SDK…

@milenradkov.chain maybe?

Haha, your reply is so quick, this question has been bothering me for several days.

Or you know the steps of signing or how to deal with the data, you can also tell me, I am studying

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think you , Solved my problem

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