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[SilentQianyi]

I'm submitting a...

[ ] Bug Fix
[ ] Feature
[ ] Other (Refactoring, Added tests, Documentation, ...)

Checklist

• Commit Messages follow the Conventional Commits pattern
  • A feature commit message is prefixed "feat:"
  • A bugfix commit message is prefixed "fix:"
• Tests for the changes have been added

Description

please describe the changes that you are making

for features, please describe how to use the new feature

please include a reference to an existing issue, if applicable

Does this PR introduce a breaking change?

[ ] Yes
[ ] No

Issus
#1890

[huan]

According to https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify

toJSON() behavior

If an object being stringified has a property named toJSON whose value is a function, then the toJSON() method customizes JSON stringification behavior: instead of the object being serialized, the value returned by the toJSON() method when called will be serialized. JSON.stringify() calls toJSON with one parameter:

• if this object is a property value, the property name
• if it is in an array, the index in the array, as a string
• an empty string if JSON.stringify() was directly called on this object

The method name should be named properly as toJSON() with a return type string instead of a Promise.