[Bug][http-client-js] encode to number didn't handle correctly

[MaryGao]

Describe the bug

Encode to number didn't handle correctly.

Reproduction

NA

Checklist

• Follow our Code of Conduct
• Check that there isn't already an issue that request the same bug to avoid creating a duplicate.
• Check that this is a concrete bug. For Q&A open a GitHub Discussion.
• The provided reproduction is a minimal reproducible example of the bug.